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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-06 17:27:14 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-06 17:27:14 -0700 |
commit | 285767604576148fc1be7fcd112e4a90eb0d6ad2 (patch) | |
tree | b4c611689f95e1a2ba0fe7b6407e05469251fc2f /drivers | |
parent | 5eb6eed7e0fe880dc8de8da203cc888716bbf196 (diff) | |
parent | 0ed2dd03b94b7b7f66e23f25073b5385d0416589 (diff) | |
download | linux-stable-285767604576148fc1be7fcd112e4a90eb0d6ad2.tar.gz linux-stable-285767604576148fc1be7fcd112e4a90eb0d6ad2.tar.bz2 linux-stable-285767604576148fc1be7fcd112e4a90eb0d6ad2.zip |
Merge tag 'overflow-v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull overflow updates from Kees Cook:
"This adds the new overflow checking helpers and adds them to the
2-factor argument allocators. And this adds the saturating size
helpers and does a treewide replacement for the struct_size() usage.
Additionally this adds the overflow testing modules to make sure
everything works.
I'm still working on the treewide replacements for allocators with
"simple" multiplied arguments:
*alloc(a * b, ...) -> *alloc_array(a, b, ...)
and
*zalloc(a * b, ...) -> *calloc(a, b, ...)
as well as the more complex cases, but that's separable from this
portion of the series. I expect to have the rest sent before -rc1
closes; there are a lot of messy cases to clean up.
Summary:
- Introduce arithmetic overflow test helper functions (Rasmus)
- Use overflow helpers in 2-factor allocators (Kees, Rasmus)
- Introduce overflow test module (Rasmus, Kees)
- Introduce saturating size helper functions (Matthew, Kees)
- Treewide use of struct_size() for allocators (Kees)"
* tag 'overflow-v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
treewide: Use struct_size() for devm_kmalloc() and friends
treewide: Use struct_size() for vmalloc()-family
treewide: Use struct_size() for kmalloc()-family
device: Use overflow helpers for devm_kmalloc()
mm: Use overflow helpers in kvmalloc()
mm: Use overflow helpers in kmalloc_array*()
test_overflow: Add memory allocation overflow tests
overflow.h: Add allocation size calculation helpers
test_overflow: Report test failures
test_overflow: macrofy some more, do more tests for free
lib: add runtime test of check_*_overflow functions
compiler.h: enable builtin overflow checkers and add fallback code
Diffstat (limited to 'drivers')
76 files changed, 154 insertions, 172 deletions
diff --git a/drivers/base/devres.c b/drivers/base/devres.c index 95b67281cd2a..f98a097e73f2 100644 --- a/drivers/base/devres.c +++ b/drivers/base/devres.c @@ -84,9 +84,14 @@ static struct devres_group * node_to_group(struct devres_node *node) static __always_inline struct devres * alloc_dr(dr_release_t release, size_t size, gfp_t gfp, int nid) { - size_t tot_size = sizeof(struct devres) + size; + size_t tot_size; struct devres *dr; + /* We must catch any near-SIZE_MAX cases that could overflow. */ + if (unlikely(check_add_overflow(sizeof(struct devres), size, + &tot_size))) + return NULL; + dr = kmalloc_node_track_caller(tot_size, gfp, nid); if (unlikely(!dr)) return NULL; diff --git a/drivers/clk/bcm/clk-bcm2835-aux.c b/drivers/clk/bcm/clk-bcm2835-aux.c index 77e276d61702..f225ad29b110 100644 --- a/drivers/clk/bcm/clk-bcm2835-aux.c +++ b/drivers/clk/bcm/clk-bcm2835-aux.c @@ -40,8 +40,10 @@ static int bcm2835_aux_clk_probe(struct platform_device *pdev) if (IS_ERR(reg)) return PTR_ERR(reg); - onecell = devm_kmalloc(dev, sizeof(*onecell) + sizeof(*onecell->hws) * - BCM2835_AUX_CLOCK_COUNT, GFP_KERNEL); + onecell = devm_kmalloc(dev, + struct_size(onecell, hws, + BCM2835_AUX_CLOCK_COUNT), + GFP_KERNEL); if (!onecell) return -ENOMEM; onecell->num = BCM2835_AUX_CLOCK_COUNT; diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index fa0d5c8611a0..6d4e69edfb36 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -2147,8 +2147,8 @@ static int bcm2835_clk_probe(struct platform_device *pdev) size_t i; int ret; - cprman = devm_kzalloc(dev, sizeof(*cprman) + - sizeof(*cprman->onecell.hws) * asize, + cprman = devm_kzalloc(dev, + struct_size(cprman, onecell.hws, asize), GFP_KERNEL); if (!cprman) return -ENOMEM; diff --git a/drivers/clk/bcm/clk-iproc-asiu.c b/drivers/clk/bcm/clk-iproc-asiu.c index 4360e481368b..6fb8af506777 100644 --- a/drivers/clk/bcm/clk-iproc-asiu.c +++ b/drivers/clk/bcm/clk-iproc-asiu.c @@ -197,8 +197,8 @@ void __init iproc_asiu_setup(struct device_node *node, if (WARN_ON(!asiu)) return; - asiu->clk_data = kzalloc(sizeof(*asiu->clk_data->hws) * num_clks + - sizeof(*asiu->clk_data), GFP_KERNEL); + asiu->clk_data = kzalloc(struct_size(asiu->clk_data, hws, num_clks), + GFP_KERNEL); if (WARN_ON(!asiu->clk_data)) goto err_clks; asiu->clk_data->num = num_clks; diff --git a/drivers/clk/bcm/clk-iproc-pll.c b/drivers/clk/bcm/clk-iproc-pll.c index 43a58ae5a89d..274441e2ddb2 100644 --- a/drivers/clk/bcm/clk-iproc-pll.c +++ b/drivers/clk/bcm/clk-iproc-pll.c @@ -744,8 +744,7 @@ void iproc_pll_clk_setup(struct device_node *node, if (WARN_ON(!pll)) return; - clk_data = kzalloc(sizeof(*clk_data->hws) * num_clks + - sizeof(*clk_data), GFP_KERNEL); + clk_data = kzalloc(struct_size(clk_data, hws, num_clks), GFP_KERNEL); if (WARN_ON(!clk_data)) goto err_clk_data; clk_data->num = num_clks; diff --git a/drivers/clk/berlin/bg2.c b/drivers/clk/berlin/bg2.c index e7331ace0337..45fb888bf0a0 100644 --- a/drivers/clk/berlin/bg2.c +++ b/drivers/clk/berlin/bg2.c @@ -509,8 +509,7 @@ static void __init berlin2_clock_setup(struct device_node *np) u8 avpll_flags = 0; int n, ret; - clk_data = kzalloc(sizeof(*clk_data) + - sizeof(*clk_data->hws) * MAX_CLKS, GFP_KERNEL); + clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL); if (!clk_data) return; clk_data->num = MAX_CLKS; diff --git a/drivers/clk/berlin/bg2q.c b/drivers/clk/berlin/bg2q.c index 67c270b143f7..db7364e15c8b 100644 --- a/drivers/clk/berlin/bg2q.c +++ b/drivers/clk/berlin/bg2q.c @@ -295,8 +295,7 @@ static void __init berlin2q_clock_setup(struct device_node *np) struct clk_hw **hws; int n, ret; - clk_data = kzalloc(sizeof(*clk_data) + - sizeof(*clk_data->hws) * MAX_CLKS, GFP_KERNEL); + clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL); if (!clk_data) return; clk_data->num = MAX_CLKS; diff --git a/drivers/clk/clk-asm9260.c b/drivers/clk/clk-asm9260.c index bf0582cbbf38..44b544157121 100644 --- a/drivers/clk/clk-asm9260.c +++ b/drivers/clk/clk-asm9260.c @@ -273,8 +273,7 @@ static void __init asm9260_acc_init(struct device_node *np) int n; u32 accuracy = 0; - clk_data = kzalloc(sizeof(*clk_data) + - sizeof(*clk_data->hws) * MAX_CLKS, GFP_KERNEL); + clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL); if (!clk_data) return; clk_data->num = MAX_CLKS; diff --git a/drivers/clk/clk-aspeed.c b/drivers/clk/clk-aspeed.c index 5eb50c31e455..7abe4232d282 100644 --- a/drivers/clk/clk-aspeed.c +++ b/drivers/clk/clk-aspeed.c @@ -627,9 +627,9 @@ static void __init aspeed_cc_init(struct device_node *np) if (!scu_base) return; - aspeed_clk_data = kzalloc(sizeof(*aspeed_clk_data) + - sizeof(*aspeed_clk_data->hws) * ASPEED_NUM_CLKS, - GFP_KERNEL); + aspeed_clk_data = kzalloc(struct_size(aspeed_clk_data, hws, + ASPEED_NUM_CLKS), + GFP_KERNEL); if (!aspeed_clk_data) return; diff --git a/drivers/clk/clk-clps711x.c b/drivers/clk/clk-clps711x.c index 9193f64561f6..2c04396402ab 100644 --- a/drivers/clk/clk-clps711x.c +++ b/drivers/clk/clk-clps711x.c @@ -54,9 +54,9 @@ static struct clps711x_clk * __init _clps711x_clk_init(void __iomem *base, if (!base) return ERR_PTR(-ENOMEM); - clps711x_clk = kzalloc(sizeof(*clps711x_clk) + - sizeof(*clps711x_clk->clk_data.hws) * CLPS711X_CLK_MAX, - GFP_KERNEL); + clps711x_clk = kzalloc(struct_size(clps711x_clk, clk_data.hws, + CLPS711X_CLK_MAX), + GFP_KERNEL); if (!clps711x_clk) return ERR_PTR(-ENOMEM); diff --git a/drivers/clk/clk-efm32gg.c b/drivers/clk/clk-efm32gg.c index f674778fb3ac..f37cf08ff7aa 100644 --- a/drivers/clk/clk-efm32gg.c +++ b/drivers/clk/clk-efm32gg.c @@ -25,8 +25,8 @@ static void __init efm32gg_cmu_init(struct device_node *np) void __iomem *base; struct clk_hw **hws; - clk_data = kzalloc(sizeof(*clk_data) + - sizeof(*clk_data->hws) * CMU_MAX_CLKS, GFP_KERNEL); + clk_data = kzalloc(struct_size(clk_data, hws, CMU_MAX_CLKS), + GFP_KERNEL); if (!clk_data) return; diff --git a/drivers/clk/clk-gemini.c b/drivers/clk/clk-gemini.c index 5e66e6c0205e..b51069e794ff 100644 --- a/drivers/clk/clk-gemini.c +++ b/drivers/clk/clk-gemini.c @@ -399,9 +399,9 @@ static void __init gemini_cc_init(struct device_node *np) int ret; int i; - gemini_clk_data = kzalloc(sizeof(*gemini_clk_data) + - sizeof(*gemini_clk_data->hws) * GEMINI_NUM_CLKS, - GFP_KERNEL); + gemini_clk_data = kzalloc(struct_size(gemini_clk_data, hws, + GEMINI_NUM_CLKS), + GFP_KERNEL); if (!gemini_clk_data) return; diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c index fbaa84a33c46..d44e0eea31ec 100644 --- a/drivers/clk/clk-s2mps11.c +++ b/drivers/clk/clk-s2mps11.c @@ -147,8 +147,8 @@ static int s2mps11_clk_probe(struct platform_device *pdev) if (!s2mps11_clks) return -ENOMEM; - clk_data = devm_kzalloc(&pdev->dev, sizeof(*clk_data) + - sizeof(*clk_data->hws) * S2MPS11_CLKS_NUM, + clk_data = devm_kzalloc(&pdev->dev, + struct_size(clk_data, hws, S2MPS11_CLKS_NUM), GFP_KERNEL); if (!clk_data) return -ENOMEM; diff --git a/drivers/clk/clk-scmi.c b/drivers/clk/clk-scmi.c index 488c21376b55..bb2a6f2f5516 100644 --- a/drivers/clk/clk-scmi.c +++ b/drivers/clk/clk-scmi.c @@ -137,8 +137,8 @@ static int scmi_clocks_probe(struct scmi_device *sdev) return -EINVAL; } - clk_data = devm_kzalloc(dev, sizeof(*clk_data) + - sizeof(*clk_data->hws) * count, GFP_KERNEL); + clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, count), + GFP_KERNEL); if (!clk_data) return -ENOMEM; diff --git a/drivers/clk/clk-stm32h7.c b/drivers/clk/clk-stm32h7.c index db2b162c0d4c..d3271eca3779 100644 --- a/drivers/clk/clk-stm32h7.c +++ b/drivers/clk/clk-stm32h7.c @@ -1201,9 +1201,8 @@ static void __init stm32h7_rcc_init(struct device_node *np) const char *hse_clk, *lse_clk, *i2s_clk; struct regmap *pdrm; - clk_data = kzalloc(sizeof(*clk_data) + - sizeof(*clk_data->hws) * STM32H7_MAX_CLKS, - GFP_KERNEL); + clk_data = kzalloc(struct_size(clk_data, hws, STM32H7_MAX_CLKS), + GFP_KERNEL); if (!clk_data) return; diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c index edd3cf451401..83e8cd81674f 100644 --- a/drivers/clk/clk-stm32mp1.c +++ b/drivers/clk/clk-stm32mp1.c @@ -2060,9 +2060,8 @@ static int stm32_rcc_init(struct device_node *np, max_binding = data->maxbinding; - clk_data = kzalloc(sizeof(*clk_data) + - sizeof(*clk_data->hws) * max_binding, - GFP_KERNEL); + clk_data = kzalloc(struct_size(clk_data, hws, max_binding), + GFP_KERNEL); if (!clk_data) return -ENOMEM; diff --git a/drivers/clk/davinci/da8xx-cfgchip.c b/drivers/clk/davinci/da8xx-cfgchip.c index c971111d2601..aae62a5b8734 100644 --- a/drivers/clk/davinci/da8xx-cfgchip.c +++ b/drivers/clk/davinci/da8xx-cfgchip.c @@ -650,8 +650,8 @@ static int of_da8xx_usb_phy_clk_init(struct device *dev, struct regmap *regmap) struct da8xx_usb0_clk48 *usb0; struct da8xx_usb1_clk48 *usb1; - clk_data = devm_kzalloc(dev, sizeof(*clk_data) + 2 * - sizeof(*clk_data->hws), GFP_KERNEL); + clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, 2), + GFP_KERNEL); if (!clk_data) return -ENOMEM; diff --git a/drivers/clk/mvebu/armada-37xx-periph.c b/drivers/clk/mvebu/armada-37xx-periph.c index 87213ea7fc84..6860bd5a37c5 100644 --- a/drivers/clk/mvebu/armada-37xx-periph.c +++ b/drivers/clk/mvebu/armada-37xx-periph.c @@ -667,9 +667,10 @@ static int armada_3700_periph_clock_probe(struct platform_device *pdev) if (!driver_data) return -ENOMEM; - driver_data->hw_data = devm_kzalloc(dev, sizeof(*driver_data->hw_data) + - sizeof(*driver_data->hw_data->hws) * num_periph, - GFP_KERNEL); + driver_data->hw_data = devm_kzalloc(dev, + struct_size(driver_data->hw_data, + hws, num_periph), + GFP_KERNEL); if (!driver_data->hw_data) return -ENOMEM; driver_data->hw_data->num = num_periph; diff --git a/drivers/clk/mvebu/armada-37xx-tbg.c b/drivers/clk/mvebu/armada-37xx-tbg.c index aa80db11f543..7ff041f73b55 100644 --- a/drivers/clk/mvebu/armada-37xx-tbg.c +++ b/drivers/clk/mvebu/armada-37xx-tbg.c @@ -91,8 +91,8 @@ static int armada_3700_tbg_clock_probe(struct platform_device *pdev) void __iomem *reg; int i, ret; - hw_tbg_data = devm_kzalloc(&pdev->dev, sizeof(*hw_tbg_data) - + sizeof(*hw_tbg_data->hws) * NUM_TBG, + hw_tbg_data = devm_kzalloc(&pdev->dev, + struct_size(hw_tbg_data, hws, NUM_TBG), GFP_KERNEL); if (!hw_tbg_data) return -ENOMEM; diff --git a/drivers/clk/qcom/clk-spmi-pmic-div.c b/drivers/clk/qcom/clk-spmi-pmic-div.c index 8672ab84746f..c90dfdd6c147 100644 --- a/drivers/clk/qcom/clk-spmi-pmic-div.c +++ b/drivers/clk/qcom/clk-spmi-pmic-div.c @@ -239,8 +239,7 @@ static int spmi_pmic_clkdiv_probe(struct platform_device *pdev) if (!nclks) return -EINVAL; - cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*cc->clks) * nclks, - GFP_KERNEL); + cc = devm_kzalloc(dev, struct_size(cc, clks, nclks), GFP_KERNEL); if (!cc) return -ENOMEM; cc->nclks = nclks; diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c index b4b057c7301c..f659c5cbf1d5 100644 --- a/drivers/clk/samsung/clk-exynos-audss.c +++ b/drivers/clk/samsung/clk-exynos-audss.c @@ -149,8 +149,8 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) epll = ERR_PTR(-ENODEV); clk_data = devm_kzalloc(dev, - sizeof(*clk_data) + - sizeof(*clk_data->hws) * EXYNOS_AUDSS_MAX_CLKS, + struct_size(clk_data, hws, + EXYNOS_AUDSS_MAX_CLKS), GFP_KERNEL); if (!clk_data) return -ENOMEM; diff --git a/drivers/clk/samsung/clk-exynos-clkout.c b/drivers/clk/samsung/clk-exynos-clkout.c index f29fb5824005..9c95390d2d77 100644 --- a/drivers/clk/samsung/clk-exynos-clkout.c +++ b/drivers/clk/samsung/clk-exynos-clkout.c @@ -61,8 +61,7 @@ static void __init exynos_clkout_init(struct device_node *node, u32 mux_mask) int ret; int i; - clkout = kzalloc(sizeof(*clkout) + - sizeof(*clkout->data.hws) * EXYNOS_CLKOUT_NR_CLKS, + clkout = kzalloc(struct_size(clkout, data.hws, EXYNOS_CLKOUT_NR_CLKS), GFP_KERNEL); if (!clkout) return; diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c index 5305ace514b2..162de44df099 100644 --- a/drivers/clk/samsung/clk-exynos5433.c +++ b/drivers/clk/samsung/clk-exynos5433.c @@ -5505,8 +5505,8 @@ static int __init exynos5433_cmu_probe(struct platform_device *pdev) info = of_device_get_match_data(dev); - data = devm_kzalloc(dev, sizeof(*data) + - sizeof(*data->ctx.clk_data.hws) * info->nr_clk_ids, + data = devm_kzalloc(dev, + struct_size(data, ctx.clk_data.hws, info->nr_clk_ids), GFP_KERNEL); if (!data) return -ENOMEM; diff --git a/drivers/clk/samsung/clk-s3c2410-dclk.c b/drivers/clk/samsung/clk-s3c2410-dclk.c index 077df3e539a7..66a904758761 100644 --- a/drivers/clk/samsung/clk-s3c2410-dclk.c +++ b/drivers/clk/samsung/clk-s3c2410-dclk.c @@ -247,9 +247,10 @@ static int s3c24xx_dclk_probe(struct platform_device *pdev) struct clk_hw **clk_table; int ret, i; - s3c24xx_dclk = devm_kzalloc(&pdev->dev, sizeof(*s3c24xx_dclk) + - sizeof(*s3c24xx_dclk->clk_data.hws) * DCLK_MAX_CLKS, - GFP_KERNEL); + s3c24xx_dclk = devm_kzalloc(&pdev->dev, + struct_size(s3c24xx_dclk, clk_data.hws, + DCLK_MAX_CLKS), + GFP_KERNEL); if (!s3c24xx_dclk) return -ENOMEM; diff --git a/drivers/clk/samsung/clk-s5pv210-audss.c b/drivers/clk/samsung/clk-s5pv210-audss.c index b9641414ddc6..22b18e728b88 100644 --- a/drivers/clk/samsung/clk-s5pv210-audss.c +++ b/drivers/clk/samsung/clk-s5pv210-audss.c @@ -81,8 +81,7 @@ static int s5pv210_audss_clk_probe(struct platform_device *pdev) } clk_data = devm_kzalloc(&pdev->dev, - sizeof(*clk_data) + - sizeof(*clk_data->hws) * AUDSS_MAX_CLKS, + struct_size(clk_data, hws, AUDSS_MAX_CLKS), GFP_KERNEL); if (!clk_data) diff --git a/drivers/dax/device.c b/drivers/dax/device.c index aff2c1594220..de2f8297a210 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -594,7 +594,7 @@ struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region, if (!count) return ERR_PTR(-EINVAL); - dev_dax = kzalloc(sizeof(*dev_dax) + sizeof(*res) * count, GFP_KERNEL); + dev_dax = kzalloc(struct_size(dev_dax, res, count), GFP_KERNEL); if (!dev_dax) return ERR_PTR(-ENOMEM); diff --git a/drivers/dma/bcm-sba-raid.c b/drivers/dma/bcm-sba-raid.c index 3956a018bf5a..72878ac5c78d 100644 --- a/drivers/dma/bcm-sba-raid.c +++ b/drivers/dma/bcm-sba-raid.c @@ -1499,9 +1499,8 @@ static int sba_prealloc_channel_resources(struct sba_device *sba) for (i = 0; i < sba->max_req; i++) { req = devm_kzalloc(sba->dev, - sizeof(*req) + - sba->max_cmd_per_req * sizeof(req->cmds[0]), - GFP_KERNEL); + struct_size(req, cmds, sba->max_cmd_per_req), + GFP_KERNEL); if (!req) { ret = -ENOMEM; goto fail_free_cmds_pool; diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 85ea92fcea54..9bc722ca8329 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -1074,8 +1074,7 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg( return NULL; } - edesc = kzalloc(sizeof(*edesc) + sg_len * sizeof(edesc->pset[0]), - GFP_ATOMIC); + edesc = kzalloc(struct_size(edesc, pset, sg_len), GFP_ATOMIC); if (!edesc) return NULL; @@ -1192,8 +1191,7 @@ static struct dma_async_tx_descriptor *edma_prep_dma_memcpy( nslots = 2; } - edesc = kzalloc(sizeof(*edesc) + nslots * sizeof(edesc->pset[0]), - GFP_ATOMIC); + edesc = kzalloc(struct_size(edesc, pset, nslots), GFP_ATOMIC); if (!edesc) return NULL; @@ -1315,8 +1313,7 @@ static struct dma_async_tx_descriptor *edma_prep_dma_cyclic( } } - edesc = kzalloc(sizeof(*edesc) + nslots * sizeof(edesc->pset[0]), - GFP_ATOMIC); + edesc = kzalloc(struct_size(edesc, pset, nslots), GFP_ATOMIC); if (!edesc) return NULL; diff --git a/drivers/dma/moxart-dma.c b/drivers/dma/moxart-dma.c index e1a5c2242f6f..e04499c1f27f 100644 --- a/drivers/dma/moxart-dma.c +++ b/drivers/dma/moxart-dma.c @@ -309,7 +309,7 @@ static struct dma_async_tx_descriptor *moxart_prep_slave_sg( return NULL; } - d = kzalloc(sizeof(*d) + sg_len * sizeof(d->sg[0]), GFP_ATOMIC); + d = kzalloc(struct_size(d, sg, sg_len), GFP_ATOMIC); if (!d) return NULL; diff --git a/drivers/dma/nbpfaxi.c b/drivers/dma/nbpfaxi.c index 50559338239b..2f9974ddfbb2 100644 --- a/drivers/dma/nbpfaxi.c +++ b/drivers/dma/nbpfaxi.c @@ -1305,8 +1305,8 @@ static int nbpf_probe(struct platform_device *pdev) cfg = of_device_get_match_data(dev); num_channels = cfg->num_channels; - nbpf = devm_kzalloc(dev, sizeof(*nbpf) + num_channels * - sizeof(nbpf->chan[0]), GFP_KERNEL); + nbpf = devm_kzalloc(dev, struct_size(nbpf, chan, num_channels), + GFP_KERNEL); if (!nbpf) return -ENOMEM; diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c index d21c19822feb..9483000fcf79 100644 --- a/drivers/dma/omap-dma.c +++ b/drivers/dma/omap-dma.c @@ -917,7 +917,7 @@ static struct dma_async_tx_descriptor *omap_dma_prep_slave_sg( } /* Now allocate and setup the descriptor. */ - d = kzalloc(sizeof(*d) + sglen * sizeof(d->sg[0]), GFP_ATOMIC); + d = kzalloc(struct_size(d, sg, sglen), GFP_ATOMIC); if (!d) return NULL; diff --git a/drivers/dma/sa11x0-dma.c b/drivers/dma/sa11x0-dma.c index c7a89c22890e..b31d07c7d93c 100644 --- a/drivers/dma/sa11x0-dma.c +++ b/drivers/dma/sa11x0-dma.c @@ -557,7 +557,7 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg( } } - txd = kzalloc(sizeof(*txd) + j * sizeof(txd->sg[0]), GFP_ATOMIC); + txd = kzalloc(struct_size(txd, sg, j), GFP_ATOMIC); if (!txd) { dev_dbg(chan->device->dev, "vchan %p: kzalloc failed\n", &c->vc); return NULL; @@ -627,7 +627,7 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_dma_cyclic( if (sglen == 0) return NULL; - txd = kzalloc(sizeof(*txd) + sglen * sizeof(txd->sg[0]), GFP_ATOMIC); + txd = kzalloc(struct_size(txd, sg, sglen), GFP_ATOMIC); if (!txd) { dev_dbg(chan->device->dev, "vchan %p: kzalloc failed\n", &c->vc); return NULL; diff --git a/drivers/dma/sh/usb-dmac.c b/drivers/dma/sh/usb-dmac.c index 31a145154e9f..1bb1a8e09025 100644 --- a/drivers/dma/sh/usb-dmac.c +++ b/drivers/dma/sh/usb-dmac.c @@ -269,7 +269,7 @@ static int usb_dmac_desc_alloc(struct usb_dmac_chan *chan, unsigned int sg_len, struct usb_dmac_desc *desc; unsigned long flags; - desc = kzalloc(sizeof(*desc) + sg_len * sizeof(desc->sg[0]), gfp); + desc = kzalloc(struct_size(desc, sg, sg_len), gfp); if (!desc) return -ENOMEM; diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c index b106e8a60af6..52ebccb483be 100644 --- a/drivers/dma/sprd-dma.c +++ b/drivers/dma/sprd-dma.c @@ -805,8 +805,8 @@ static int sprd_dma_probe(struct platform_device *pdev) return ret; } - sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev) + - sizeof(*dma_chn) * chn_count, + sdev = devm_kzalloc(&pdev->dev, + struct_size(sdev, channels, chn_count), GFP_KERNEL); if (!sdev) return -ENOMEM; diff --git a/drivers/firewire/core-topology.c b/drivers/firewire/core-topology.c index 939d259ddf19..7db234d3fbdd 100644 --- a/drivers/firewire/core-topology.c +++ b/drivers/firewire/core-topology.c @@ -112,8 +112,7 @@ static struct fw_node *fw_node_create(u32 sid, int port_count, int color) { struct fw_node *node; - node = kzalloc(sizeof(*node) + port_count * sizeof(node->ports[0]), - GFP_ATOMIC); + node = kzalloc(struct_size(node, ports, port_count), GFP_ATOMIC); if (node == NULL) return NULL; diff --git a/drivers/gpio/gpio-uniphier.c b/drivers/gpio/gpio-uniphier.c index 761d8279abca..d3cf9502e7e7 100644 --- a/drivers/gpio/gpio-uniphier.c +++ b/drivers/gpio/gpio-uniphier.c @@ -371,8 +371,7 @@ static int uniphier_gpio_probe(struct platform_device *pdev) return ret; nregs = uniphier_gpio_get_nbanks(ngpios) * 2 + 3; - priv = devm_kzalloc(dev, - sizeof(*priv) + sizeof(priv->saved_vals[0]) * nregs, + priv = devm_kzalloc(dev, struct_size(priv, saved_vals, nregs), GFP_KERNEL); if (!priv) return -ENOMEM; diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index d8ccb500872f..55d596f3035e 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -4023,8 +4023,7 @@ struct gpio_descs *__must_check gpiod_get_array(struct device *dev, if (count < 0) return ERR_PTR(count); - descs = kzalloc(sizeof(*descs) + sizeof(descs->desc[0]) * count, - GFP_KERNEL); + descs = kzalloc(struct_size(descs, desc, count), GFP_KERNEL); if (!descs) return ERR_PTR(-ENOMEM); diff --git a/drivers/gpu/drm/nouveau/nvkm/core/ramht.c b/drivers/gpu/drm/nouveau/nvkm/core/ramht.c index ccba4ae73cc5..8162e3d2359c 100644 --- a/drivers/gpu/drm/nouveau/nvkm/core/ramht.c +++ b/drivers/gpu/drm/nouveau/nvkm/core/ramht.c @@ -144,8 +144,7 @@ nvkm_ramht_new(struct nvkm_device *device, u32 size, u32 align, struct nvkm_ramht *ramht; int ret, i; - if (!(ramht = *pramht = vzalloc(sizeof(*ramht) + - (size >> 3) * sizeof(*ramht->data)))) + if (!(ramht = *pramht = vzalloc(struct_size(ramht, data, (size >> 3))))) return -ENOMEM; ramht->device = device; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c index 53859b6254d6..b2785bee418e 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c @@ -779,8 +779,8 @@ nvkm_perfdom_new(struct nvkm_pm *pm, const char *name, u32 mask, sdom = spec; while (sdom->signal_nr) { - dom = kzalloc(sizeof(*dom) + sdom->signal_nr * - sizeof(*dom->signal), GFP_KERNEL); + dom = kzalloc(struct_size(dom, signal, sdom->signal_nr), + GFP_KERNEL); if (!dom) return -ENOMEM; diff --git a/drivers/hwspinlock/omap_hwspinlock.c b/drivers/hwspinlock/omap_hwspinlock.c index ad2f8cac8487..d897e5251c36 100644 --- a/drivers/hwspinlock/omap_hwspinlock.c +++ b/drivers/hwspinlock/omap_hwspinlock.c @@ -132,7 +132,7 @@ static int omap_hwspinlock_probe(struct platform_device *pdev) num_locks = i * 32; /* actual number of locks in this device */ - bank = kzalloc(sizeof(*bank) + num_locks * sizeof(*hwlock), GFP_KERNEL); + bank = kzalloc(struct_size(bank, lock, num_locks), GFP_KERNEL); if (!bank) { ret = -ENOMEM; goto iounmap_base; diff --git a/drivers/hwspinlock/sirf_hwspinlock.c b/drivers/hwspinlock/sirf_hwspinlock.c index 16018544d431..cb38e487c6c4 100644 --- a/drivers/hwspinlock/sirf_hwspinlock.c +++ b/drivers/hwspinlock/sirf_hwspinlock.c @@ -62,8 +62,10 @@ static int sirf_hwspinlock_probe(struct platform_device *pdev) if (!pdev->dev.of_node) return -ENODEV; - hwspin = devm_kzalloc(&pdev->dev, sizeof(*hwspin) + - sizeof(*hwlock) * HW_SPINLOCK_NUMBER, GFP_KERNEL); + hwspin = devm_kzalloc(&pdev->dev, + struct_size(hwspin, bank.lock, + HW_SPINLOCK_NUMBER), + GFP_KERNEL); if (!hwspin) return -ENOMEM; diff --git a/drivers/hwspinlock/u8500_hsem.c b/drivers/hwspinlock/u8500_hsem.c index e93eabbd660f..0128d8fb905e 100644 --- a/drivers/hwspinlock/u8500_hsem.c +++ b/drivers/hwspinlock/u8500_hsem.c @@ -119,7 +119,7 @@ static int u8500_hsem_probe(struct platform_device *pdev) /* clear all interrupts */ writel(0xFFFF, io_base + HSEM_ICRALL); - bank = kzalloc(sizeof(*bank) + num_locks * sizeof(*hwlock), GFP_KERNEL); + bank = kzalloc(struct_size(bank, lock, num_locks), GFP_KERNEL); if (!bank) { ret = -ENOMEM; goto iounmap_base; diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index ecc55e98ddd3..3330d97faa1e 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -1157,8 +1157,9 @@ static void ib_cache_update(struct ib_device *device, goto err; } - pkey_cache = kmalloc(sizeof *pkey_cache + tprops->pkey_tbl_len * - sizeof *pkey_cache->table, GFP_KERNEL); + pkey_cache = kmalloc(struct_size(pkey_cache, table, + tprops->pkey_tbl_len), + GFP_KERNEL); if (!pkey_cache) goto err; diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index a92e1a5c202b..36a4d90a7b47 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -4298,8 +4298,8 @@ static void cm_add_one(struct ib_device *ib_device) int count = 0; u8 i; - cm_dev = kzalloc(sizeof(*cm_dev) + sizeof(*port) * - ib_device->phys_port_cnt, GFP_KERNEL); + cm_dev = kzalloc(struct_size(cm_dev, port, ib_device->phys_port_cnt), + GFP_KERNEL); if (!cm_dev) return; diff --git a/drivers/infiniband/core/multicast.c b/drivers/infiniband/core/multicast.c index 4eb72ff539fc..6c48f4193dda 100644 --- a/drivers/infiniband/core/multicast.c +++ b/drivers/infiniband/core/multicast.c @@ -813,7 +813,7 @@ static void mcast_add_one(struct ib_device *device) int i; int count = 0; - dev = kmalloc(sizeof *dev + device->phys_port_cnt * sizeof *port, + dev = kmalloc(struct_size(dev, port, device->phys_port_cnt), GFP_KERNEL); if (!dev) return; diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 21a887c9523b..e3662a8ee465 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -2756,8 +2756,8 @@ static struct ib_uflow_resources *flow_resources_alloc(size_t num_specs) struct ib_uflow_resources *resources; resources = - kmalloc(sizeof(*resources) + - num_specs * sizeof(*resources->collection), GFP_KERNEL); + kmalloc(struct_size(resources, collection, num_specs), + GFP_KERNEL); if (!resources) return NULL; diff --git a/drivers/infiniband/core/uverbs_ioctl_merge.c b/drivers/infiniband/core/uverbs_ioctl_merge.c index 0f88a1919d51..6ceb672c4d46 100644 --- a/drivers/infiniband/core/uverbs_ioctl_merge.c +++ b/drivers/infiniband/core/uverbs_ioctl_merge.c @@ -297,8 +297,7 @@ static struct uverbs_method_spec *build_method_with_attrs(const struct uverbs_me if (max_attr_buckets >= 0) num_attr_buckets = max_attr_buckets + 1; - method = kzalloc(sizeof(*method) + - num_attr_buckets * sizeof(*method->attr_buckets), + method = kzalloc(struct_size(method, attr_buckets, num_attr_buckets), GFP_KERNEL); if (!method) return ERR_PTR(-ENOMEM); @@ -446,9 +445,9 @@ static struct uverbs_object_spec *build_object_with_methods(const struct uverbs_ if (max_method_buckets >= 0) num_method_buckets = max_method_buckets + 1; - object = kzalloc(sizeof(*object) + - num_method_buckets * - sizeof(*object->method_buckets), GFP_KERNEL); + object = kzalloc(struct_size(object, method_buckets, + num_method_buckets), + GFP_KERNEL); if (!object) return ERR_PTR(-ENOMEM); @@ -469,8 +468,8 @@ static struct uverbs_object_spec *build_object_with_methods(const struct uverbs_ if (methods_max_bucket < 0) continue; - hash = kzalloc(sizeof(*hash) + - sizeof(*hash->methods) * (methods_max_bucket + 1), + hash = kzalloc(struct_size(hash, methods, + methods_max_bucket + 1), GFP_KERNEL); if (!hash) { res = -ENOMEM; @@ -579,8 +578,8 @@ struct uverbs_root_spec *uverbs_alloc_spec_tree(unsigned int num_trees, if (max_object_buckets >= 0) num_objects_buckets = max_object_buckets + 1; - root_spec = kzalloc(sizeof(*root_spec) + - num_objects_buckets * sizeof(*root_spec->object_buckets), + root_spec = kzalloc(struct_size(root_spec, object_buckets, + num_objects_buckets), GFP_KERNEL); if (!root_spec) return ERR_PTR(-ENOMEM); @@ -603,8 +602,8 @@ struct uverbs_root_spec *uverbs_alloc_spec_tree(unsigned int num_trees, if (objects_max_bucket < 0) continue; - hash = kzalloc(sizeof(*hash) + - sizeof(*hash->objects) * (objects_max_bucket + 1), + hash = kzalloc(struct_size(hash, objects, + objects_max_bucket + 1), GFP_KERNEL); if (!hash) { res = -ENOMEM; diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c index 2fe503e86c1d..7a31be3c3e73 100644 --- a/drivers/infiniband/hw/mthca/mthca_memfree.c +++ b/drivers/infiniband/hw/mthca/mthca_memfree.c @@ -367,7 +367,7 @@ struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev, obj_per_chunk = MTHCA_TABLE_CHUNK_SIZE / obj_size; num_icm = DIV_ROUND_UP(nobj, obj_per_chunk); - table = kmalloc(sizeof *table + num_icm * sizeof *table->icm, GFP_KERNEL); + table = kmalloc(struct_size(table, icm, num_icm), GFP_KERNEL); if (!table) return NULL; @@ -529,7 +529,7 @@ struct mthca_user_db_table *mthca_init_user_db_tab(struct mthca_dev *dev) return NULL; npages = dev->uar_table.uarc_size / MTHCA_ICM_PAGE_SIZE; - db_tab = kmalloc(sizeof *db_tab + npages * sizeof *db_tab->page, GFP_KERNEL); + db_tab = kmalloc(struct_size(db_tab, page, npages), GFP_KERNEL); if (!db_tab) return ERR_PTR(-ENOMEM); diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c index cc429b567d0a..49c9541050d4 100644 --- a/drivers/infiniband/sw/rdmavt/mr.c +++ b/drivers/infiniband/sw/rdmavt/mr.c @@ -283,7 +283,7 @@ static struct rvt_mr *__rvt_alloc_mr(int count, struct ib_pd *pd) /* Allocate struct plus pointers to first level page tables. */ m = (count + RVT_SEGSZ - 1) / RVT_SEGSZ; - mr = kzalloc(sizeof(*mr) + m * sizeof(mr->mr.map[0]), GFP_KERNEL); + mr = kzalloc(struct_size(mr, mr.map, m), GFP_KERNEL); if (!mr) goto bail; @@ -730,7 +730,7 @@ struct ib_fmr *rvt_alloc_fmr(struct ib_pd *pd, int mr_access_flags, /* Allocate struct plus pointers to first level page tables. */ m = (fmr_attr->max_pages + RVT_SEGSZ - 1) / RVT_SEGSZ; - fmr = kzalloc(sizeof(*fmr) + m * sizeof(fmr->mr.map[0]), GFP_KERNEL); + fmr = kzalloc(struct_size(fmr, mr.map, m), GFP_KERNEL); if (!fmr) goto bail; diff --git a/drivers/input/input-leds.c b/drivers/input/input-leds.c index 5f04b2d94635..99cc784e1264 100644 --- a/drivers/input/input-leds.c +++ b/drivers/input/input-leds.c @@ -98,8 +98,7 @@ static int input_leds_connect(struct input_handler *handler, if (!num_leds) return -ENXIO; - leds = kzalloc(sizeof(*leds) + num_leds * sizeof(*leds->leds), - GFP_KERNEL); + leds = kzalloc(struct_size(leds, leds, num_leds), GFP_KERNEL); if (!leds) return -ENOMEM; diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c index a1bbec9cda8d..cf30523c6ef6 100644 --- a/drivers/input/input-mt.c +++ b/drivers/input/input-mt.c @@ -49,7 +49,7 @@ int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots, if (mt) return mt->num_slots != num_slots ? -EINVAL : 0; - mt = kzalloc(sizeof(*mt) + num_slots * sizeof(*mt->slots), GFP_KERNEL); + mt = kzalloc(struct_size(mt, slots, num_slots), GFP_KERNEL); if (!mt) goto err_mem; diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c index 1a1eacae3ea1..312916f99597 100644 --- a/drivers/input/keyboard/cap11xx.c +++ b/drivers/input/keyboard/cap11xx.c @@ -357,8 +357,7 @@ static int cap11xx_i2c_probe(struct i2c_client *i2c_client, } priv = devm_kzalloc(dev, - sizeof(*priv) + - cap->num_channels * sizeof(priv->keycodes[0]), + struct_size(priv, keycodes, cap->num_channels), GFP_KERNEL); if (!priv) return -ENOMEM; diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 6f823f44b4aa..ab13fcec3fca 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -756,7 +756,7 @@ static struct raid_set *raid_set_alloc(struct dm_target *ti, struct raid_type *r return ERR_PTR(-EINVAL); } - rs = kzalloc(sizeof(*rs) + raid_devs * sizeof(rs->dev[0]), GFP_KERNEL); + rs = kzalloc(struct_size(rs, dev, raid_devs), GFP_KERNEL); if (!rs) { ti->error = "Cannot allocate raid context"; return ERR_PTR(-ENOMEM); diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 0589a4da12bb..caa51dd351b6 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -548,14 +548,14 @@ static int adjoin(struct dm_table *table, struct dm_target *ti) * On the other hand, dm-switch needs to process bulk data using messages and * excessive use of GFP_NOIO could cause trouble. */ -static char **realloc_argv(unsigned *array_size, char **old_argv) +static char **realloc_argv(unsigned *size, char **old_argv) { char **argv; unsigned new_size; gfp_t gfp; - if (*array_size) { - new_size = *array_size * 2; + if (*size) { + new_size = *size * 2; gfp = GFP_KERNEL; } else { new_size = 8; @@ -563,8 +563,8 @@ static char **realloc_argv(unsigned *array_size, char **old_argv) } argv = kmalloc(new_size * sizeof(*argv), gfp); if (argv) { - memcpy(argv, old_argv, *array_size * sizeof(*argv)); - *array_size = new_size; + memcpy(argv, old_argv, *size * sizeof(*argv)); + *size = new_size; } kfree(old_argv); diff --git a/drivers/mfd/qcom-pm8xxx.c b/drivers/mfd/qcom-pm8xxx.c index f08758f6b418..e6e8d81c15fd 100644 --- a/drivers/mfd/qcom-pm8xxx.c +++ b/drivers/mfd/qcom-pm8xxx.c @@ -563,8 +563,8 @@ static int pm8xxx_probe(struct platform_device *pdev) pr_info("PMIC revision 2: %02X\n", val); rev |= val << BITS_PER_BYTE; - chip = devm_kzalloc(&pdev->dev, sizeof(*chip) + - sizeof(chip->config[0]) * data->num_irqs, + chip = devm_kzalloc(&pdev->dev, + struct_size(chip, config, data->num_irqs), GFP_KERNEL); if (!chip) return -ENOMEM; diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c index fb397e7d1cce..4d4acf763b65 100644 --- a/drivers/misc/cb710/core.c +++ b/drivers/misc/cb710/core.c @@ -232,8 +232,8 @@ static int cb710_probe(struct pci_dev *pdev, if (val & CB710_SLOT_SM) ++n; - chip = devm_kzalloc(&pdev->dev, - sizeof(*chip) + n * sizeof(*chip->slot), GFP_KERNEL); + chip = devm_kzalloc(&pdev->dev, struct_size(chip, slot, n), + GFP_KERNEL); if (!chip) return -ENOMEM; diff --git a/drivers/misc/vexpress-syscfg.c b/drivers/misc/vexpress-syscfg.c index 9eea30f54fd6..80a6f199077c 100644 --- a/drivers/misc/vexpress-syscfg.c +++ b/drivers/misc/vexpress-syscfg.c @@ -182,8 +182,7 @@ static struct regmap *vexpress_syscfg_regmap_init(struct device *dev, val = energy_quirk; } - func = kzalloc(sizeof(*func) + sizeof(*func->template) * num, - GFP_KERNEL); + func = kzalloc(struct_size(func, template, num), GFP_KERNEL); if (!func) return ERR_PTR(-ENOMEM); diff --git a/drivers/mtd/spi-nor/aspeed-smc.c b/drivers/mtd/spi-nor/aspeed-smc.c index 8d3cbe27efb6..95e54468cf7d 100644 --- a/drivers/mtd/spi-nor/aspeed-smc.c +++ b/drivers/mtd/spi-nor/aspeed-smc.c @@ -861,8 +861,9 @@ static int aspeed_smc_probe(struct platform_device *pdev) return -ENODEV; info = match->data; - controller = devm_kzalloc(&pdev->dev, sizeof(*controller) + - info->nce * sizeof(controller->chips[0]), GFP_KERNEL); + controller = devm_kzalloc(&pdev->dev, + struct_size(controller, chips, info->nce), + GFP_KERNEL); if (!controller) return -ENOMEM; controller->info = info; diff --git a/drivers/net/can/peak_canfd/peak_pciefd_main.c b/drivers/net/can/peak_canfd/peak_pciefd_main.c index 3c51a884db87..b9e28578bc7b 100644 --- a/drivers/net/can/peak_canfd/peak_pciefd_main.c +++ b/drivers/net/can/peak_canfd/peak_pciefd_main.c @@ -752,8 +752,7 @@ static int peak_pciefd_probe(struct pci_dev *pdev, can_count = 1; /* allocate board structure object */ - pciefd = devm_kzalloc(&pdev->dev, sizeof(*pciefd) + - can_count * sizeof(*pciefd->can), + pciefd = devm_kzalloc(&pdev->dev, struct_size(pciefd, can, can_count), GFP_KERNEL); if (!pciefd) { err = -ENOMEM; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c index 7ecadb501743..413080a312a7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c @@ -494,7 +494,7 @@ static int add_res_tree(struct mlx5_core_dev *dev, enum dbg_rsc_type type, int err; int i; - d = kzalloc(sizeof(*d) + nfile * sizeof(d->fields[0]), GFP_KERNEL); + d = kzalloc(struct_size(d, fields, nfile), GFP_KERNEL); if (!d) return -ENOMEM; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index c39c1692e674..56e275199256 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -1191,8 +1191,7 @@ static struct mlx5_flow_handle *alloc_handle(int num_rules) { struct mlx5_flow_handle *handle; - handle = kzalloc(sizeof(*handle) + sizeof(handle->rule[0]) * - num_rules, GFP_KERNEL); + handle = kzalloc(struct_size(handle, rule, num_rules), GFP_KERNEL); if (!handle) return NULL; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 90f8c89ea59c..9b2e1cb58e38 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -2987,9 +2987,8 @@ static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, mvmsta = iwl_mvm_sta_from_mac80211(sta); WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); - ptk_pn = kzalloc(sizeof(*ptk_pn) + - mvm->trans->num_rx_queues * - sizeof(ptk_pn->q[0]), + ptk_pn = kzalloc(struct_size(ptk_pn, q, + mvm->trans->num_rx_queues), GFP_KERNEL); if (!ptk_pn) { ret = -ENOMEM; diff --git a/drivers/net/wireless/mediatek/mt76/agg-rx.c b/drivers/net/wireless/mediatek/mt76/agg-rx.c index fcb208d1f276..89c7d8c7eb48 100644 --- a/drivers/net/wireless/mediatek/mt76/agg-rx.c +++ b/drivers/net/wireless/mediatek/mt76/agg-rx.c @@ -236,8 +236,7 @@ int mt76_rx_aggr_start(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tidno, mt76_rx_aggr_stop(dev, wcid, tidno); - tid = kzalloc(sizeof(*tid) + size * sizeof(tid->reorder_buf[0]), - GFP_KERNEL); + tid = kzalloc(struct_size(tid, reorder_buf, size), GFP_KERNEL); if (!tid) return -ENOMEM; diff --git a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c index 288e6567ceb1..c399f0932af5 100644 --- a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c +++ b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c @@ -483,8 +483,8 @@ static int s3c64xx_eint_gpio_init(struct samsung_pinctrl_drv_data *d) ++nr_domains; } - data = devm_kzalloc(dev, sizeof(*data) - + nr_domains * sizeof(*data->domains), GFP_KERNEL); + data = devm_kzalloc(dev, struct_size(data, domains, nr_domains), + GFP_KERNEL); if (!data) return -ENOMEM; data->drvdata = d; diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c index ec0f77afeaa4..add8e870667b 100644 --- a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c +++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c @@ -759,8 +759,7 @@ static int uniphier_pinctrl_add_reg_region(struct device *dev, nregs = DIV_ROUND_UP(count * width, 32); - region = devm_kzalloc(dev, - sizeof(*region) + sizeof(region->vals[0]) * nregs, + region = devm_kzalloc(dev, struct_size(region, vals, nregs), GFP_KERNEL); if (!region) return -ENOMEM; diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c index fe4c7d677f9c..0e0277bd91a8 100644 --- a/drivers/regulator/mc13783-regulator.c +++ b/drivers/regulator/mc13783-regulator.c @@ -409,9 +409,9 @@ static int mc13783_regulator_probe(struct platform_device *pdev) if (num_regulators <= 0) return -EINVAL; - priv = devm_kzalloc(&pdev->dev, sizeof(*priv) + - num_regulators * sizeof(priv->regulators[0]), - GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, + struct_size(priv, regulators, num_regulators), + GFP_KERNEL); if (!priv) return -ENOMEM; diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c index 0d17c9206816..15dd7bc7b529 100644 --- a/drivers/regulator/mc13892-regulator.c +++ b/drivers/regulator/mc13892-regulator.c @@ -547,9 +547,9 @@ static int mc13892_regulator_probe(struct platform_device *pdev) if (num_regulators <= 0) return -EINVAL; - priv = devm_kzalloc(&pdev->dev, sizeof(*priv) + - num_regulators * sizeof(priv->regulators[0]), - GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, + struct_size(priv, regulators, num_regulators), + GFP_KERNEL); if (!priv) return -ENOMEM; diff --git a/drivers/reset/core.c b/drivers/reset/core.c index 6488292e129c..225e34c56b94 100644 --- a/drivers/reset/core.c +++ b/drivers/reset/core.c @@ -730,8 +730,7 @@ of_reset_control_array_get(struct device_node *np, bool shared, bool optional) if (num < 0) return optional ? NULL : ERR_PTR(num); - resets = kzalloc(sizeof(*resets) + sizeof(resets->rstc[0]) * num, - GFP_KERNEL); + resets = kzalloc(struct_size(resets, rstc, num), GFP_KERNEL); if (!resets) return ERR_PTR(-ENOMEM); diff --git a/drivers/rtc/rtc-ac100.c b/drivers/rtc/rtc-ac100.c index 3fe576fdd45e..784b676284bf 100644 --- a/drivers/rtc/rtc-ac100.c +++ b/drivers/rtc/rtc-ac100.c @@ -317,10 +317,10 @@ static int ac100_rtc_register_clks(struct ac100_rtc_dev *chip) const char *parents[2] = {AC100_RTC_32K_NAME}; int i, ret; - chip->clk_data = devm_kzalloc(chip->dev, sizeof(*chip->clk_data) + - sizeof(*chip->clk_data->hws) * - AC100_CLKOUT_NUM, - GFP_KERNEL); + chip->clk_data = devm_kzalloc(chip->dev, + struct_size(chip->clk_data, hws, + AC100_CLKOUT_NUM), + GFP_KERNEL); if (!chip->clk_data) return -ENOMEM; diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index db9c854088bc..93b2862bd3fa 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -326,8 +326,7 @@ int ccwgroup_create_dev(struct device *parent, struct ccwgroup_driver *gdrv, if (num_devices < 1) return -EINVAL; - gdev = kzalloc(sizeof(*gdev) + num_devices * sizeof(gdev->cdev[0]), - GFP_KERNEL); + gdev = kzalloc(struct_size(gdev, cdev, num_devices), GFP_KERNEL); if (!gdev) return -ENOMEM; diff --git a/drivers/soc/actions/owl-sps.c b/drivers/soc/actions/owl-sps.c index 8477f0f18e24..032921d8d41f 100644 --- a/drivers/soc/actions/owl-sps.c +++ b/drivers/soc/actions/owl-sps.c @@ -117,8 +117,8 @@ static int owl_sps_probe(struct platform_device *pdev) sps_info = match->data; - sps = devm_kzalloc(&pdev->dev, sizeof(*sps) + - sps_info->num_domains * sizeof(sps->domains[0]), + sps = devm_kzalloc(&pdev->dev, + struct_size(sps, domains, sps_info->num_domains), GFP_KERNEL); if (!sps) return -ENOMEM; diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c index 53efc386b1ad..111c44fc1c12 100644 --- a/drivers/soc/rockchip/pm_domains.c +++ b/drivers/soc/rockchip/pm_domains.c @@ -626,8 +626,7 @@ static int rockchip_pm_domain_probe(struct platform_device *pdev) pmu_info = match->data; pmu = devm_kzalloc(dev, - sizeof(*pmu) + - pmu_info->num_domains * sizeof(pmu->domains[0]), + struct_size(pmu, domains, pmu_info->num_domains), GFP_KERNEL); if (!pmu) return -ENOMEM; diff --git a/drivers/staging/greybus/module.c b/drivers/staging/greybus/module.c index b785382192de..894d02e8d8b7 100644 --- a/drivers/staging/greybus/module.c +++ b/drivers/staging/greybus/module.c @@ -94,8 +94,8 @@ struct gb_module *gb_module_create(struct gb_host_device *hd, u8 module_id, struct gb_module *module; int i; - module = kzalloc(sizeof(*module) + num_interfaces * sizeof(intf), - GFP_KERNEL); + module = kzalloc(struct_size(module, interfaces, num_interfaces), + GFP_KERNEL); if (!module) return NULL; diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c index 3f9fe6aa51cc..c2c34425279d 100644 --- a/drivers/thermal/qcom/tsens.c +++ b/drivers/thermal/qcom/tsens.c @@ -112,7 +112,6 @@ static int tsens_probe(struct platform_device *pdev) int ret, i; struct device *dev; struct device_node *np; - struct tsens_sensor *s; struct tsens_device *tmdev; const struct tsens_data *data; const struct of_device_id *id; @@ -135,8 +134,9 @@ static int tsens_probe(struct platform_device *pdev) return -EINVAL; } - tmdev = devm_kzalloc(dev, sizeof(*tmdev) + - data->num_sensors * sizeof(*s), GFP_KERNEL); + tmdev = devm_kzalloc(dev, + struct_size(tmdev, sensor, data->num_sensors), + GFP_KERNEL); if (!tmdev) return -ENOMEM; diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index f80699747ee0..46af0aa07e2e 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -1301,9 +1301,8 @@ static struct usb_function *f_midi_alloc(struct usb_function_instance *fi) } /* allocate and initialize one new instance */ - midi = kzalloc( - sizeof(*midi) + opts->in_ports * sizeof(*midi->in_ports_array), - GFP_KERNEL); + midi = kzalloc(struct_size(midi, in_ports_array, opts->in_ports), + GFP_KERNEL); if (!midi) { status = -ENOMEM; goto setup_fail; diff --git a/drivers/zorro/zorro.c b/drivers/zorro/zorro.c index 67fa900572a9..8eeb84c239db 100644 --- a/drivers/zorro/zorro.c +++ b/drivers/zorro/zorro.c @@ -138,8 +138,7 @@ static int __init amiga_zorro_probe(struct platform_device *pdev) int error; /* Initialize the Zorro bus */ - bus = kzalloc(sizeof(*bus) + - zorro_num_autocon * sizeof(bus->devices[0]), + bus = kzalloc(struct_size(bus, devices, zorro_num_autocon), GFP_KERNEL); if (!bus) return -ENOMEM; |