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authorKangjie Lu <kjlu@umn.edu>2019-03-24 18:10:02 -0500
committerBartosz Golaszewski <bgolaszewski@baylibre.com>2019-03-25 09:26:48 +0100
commit6cf4511e9729c00a7306cf94085f9cc3c52ee723 (patch)
tree5725259b33dc4479a21502412c95b2299ac06fc2 /drivers/gpio
parentb45a02e13ee74b6fde56df4d76786058821a3aba (diff)
downloadlinux-6cf4511e9729c00a7306cf94085f9cc3c52ee723.tar.bz2
gpio: aspeed: fix a potential NULL pointer dereference
In case devm_kzalloc, the patch returns ENOMEM to avoid potential NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-aspeed.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index 854bce4fb9e7..217507002dbc 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -1224,6 +1224,8 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
gpio->offset_timer =
devm_kzalloc(&pdev->dev, gpio->chip.ngpio, GFP_KERNEL);
+ if (!gpio->offset_timer)
+ return -ENOMEM;
return aspeed_gpio_setup_irqs(gpio, pdev);
}