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gpio: aspeed: fix a potential NULL pointer dereference

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[ Upstream commit 6cf4511e9729c00a7306cf94085f9cc3c52ee723 ]

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>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
This commit is contained in:
Kangjie Lu 2019-03-24 18:10:02 -05:00 committed by Greg Kroah-Hartman
parent 6d18191c3e
commit ecb44816ba
1 changed files with 2 additions and 0 deletions
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2
drivers/gpio/gpio-aspeed.c
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@ -861,6 +861,8 @@ 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);
}