Check if kmemdup failed during wakeup banks initialization. Otherwise
NULL pointer would be stored under "irq_chip" member of bank and later
dereferenced in interrupt handler.
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
drivers/pinctrl/samsung/pinctrl-exynos.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index cdea07af308a..66122627b3ed 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -503,6 +503,8 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
if (match) {
irq_chip = kmemdup(match->data,
sizeof(*irq_chip), GFP_KERNEL);
+ if (!irq_chip)
+ return -ENOMEM;
wkup_np = np;
break;
}
--
2.9.3
--
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