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| author | Krzysztof Kozlowski <krzk@kernel.org> | 2019-08-05 18:27:09 +0200 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2019-10-01 20:22:04 +0200 |
| commit | 7f028caadf6c37580d0f59c6c094ed09afc04062 (patch) | |
| tree | 3b19cb6a9575fb34c2506a186f32a134f4259de6 /drivers/pinctrl/samsung | |
| parent | 6fbbcb050802d6ea109f387e961b1dbcc3a80c96 (diff) | |
| download | linux-7f028caadf6c37580d0f59c6c094ed09afc04062.tar.gz linux-7f028caadf6c37580d0f59c6c094ed09afc04062.tar.bz2 linux-7f028caadf6c37580d0f59c6c094ed09afc04062.zip | |
pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup controller init
In s3c64xx_eint_eint0_init() the for_each_child_of_node() loop is used
with a break to find a matching child node. Although each iteration of
for_each_child_of_node puts the previous node, but early exit from loop
misses it. This leads to leak of device node.
Cc: <stable@vger.kernel.org>
Fixes: 61dd72613177 ("pinctrl: Add pinctrl-s3c64xx driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'drivers/pinctrl/samsung')
| -rw-r--r-- | drivers/pinctrl/samsung/pinctrl-s3c64xx.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c index c399f0932af5..f97f8179f2b1 100644 --- a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c +++ b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c @@ -704,8 +704,10 @@ static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d) return -ENODEV; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); - if (!data) + if (!data) { + of_node_put(eint0_np); return -ENOMEM; + } data->drvdata = d; for (i = 0; i < NUM_EINT0_IRQ; ++i) { @@ -714,6 +716,7 @@ static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d) irq = irq_of_parse_and_map(eint0_np, i); if (!irq) { dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i); + of_node_put(eint0_np); return -ENXIO; } @@ -721,6 +724,7 @@ static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d) s3c64xx_eint0_handlers[i], data); } + of_node_put(eint0_np); bank = d->pin_banks; for (i = 0; i < d->nr_banks; ++i, ++bank) { |