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| author | Yi Yang <yiyang13@huawei.com> | 2023-10-19 06:55:37 +0000 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2023-10-27 19:43:18 +0200 |
| commit | 74ac5b5e2375f1e8ef797ac7770887e9969f2516 (patch) | |
| tree | 2935a3bf973fac7ff8d4ba5882e23d6ba306222c /drivers/mtd/nand | |
| parent | 60ec53ace2cb8a6f5678af1ea614f8582e32c081 (diff) | |
| download | linux-74ac5b5e2375f1e8ef797ac7770887e9969f2516.tar.gz linux-74ac5b5e2375f1e8ef797ac7770887e9969f2516.tar.bz2 linux-74ac5b5e2375f1e8ef797ac7770887e9969f2516.zip | |
mtd: rawnand: intel: check return value of devm_kasprintf()
devm_kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful by
checking the pointer validity.
Fixes: 0b1039f016e8 ("mtd: rawnand: Add NAND controller support on Intel LGM SoC")
Signed-off-by: Yi Yang <yiyang13@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20231019065537.318391-1-yiyang13@huawei.com
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/raw/intel-nand-controller.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/intel-nand-controller.c b/drivers/mtd/nand/raw/intel-nand-controller.c index cb5d88f42297..f0ad2308f6d5 100644 --- a/drivers/mtd/nand/raw/intel-nand-controller.c +++ b/drivers/mtd/nand/raw/intel-nand-controller.c @@ -619,6 +619,11 @@ static int ebu_nand_probe(struct platform_device *pdev) ebu_host->cs_num = cs; resname = devm_kasprintf(dev, GFP_KERNEL, "nand_cs%d", cs); + if (!resname) { + ret = -ENOMEM; + goto err_of_node_put; + } + ebu_host->cs[cs].chipaddr = devm_platform_ioremap_resource_byname(pdev, resname); if (IS_ERR(ebu_host->cs[cs].chipaddr)) { @@ -649,6 +654,11 @@ static int ebu_nand_probe(struct platform_device *pdev) } resname = devm_kasprintf(dev, GFP_KERNEL, "addr_sel%d", cs); + if (!resname) { + ret = -ENOMEM; + goto err_cleanup_dma; + } + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, resname); if (!res) { ret = -EINVAL; |