From: Jiasheng Jiang jiasheng@iscas.ac.cn
[ Upstream commit 1c1348bf056dee665760a3bd1cd30b0be7554fc2 ]
The return value of platform_get_resource() needs to be checked. To avoid use of error pointer in case that there is no suitable resource.
Fixes: d28c74c10751 ("power: reset: add driver for mt6323 poweroff") Signed-off-by: Jiasheng Jiang jiasheng@iscas.ac.cn Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/power/reset/mt6323-poweroff.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/power/reset/mt6323-poweroff.c b/drivers/power/reset/mt6323-poweroff.c index 0532803e6cbc4..d90e76fcb9383 100644 --- a/drivers/power/reset/mt6323-poweroff.c +++ b/drivers/power/reset/mt6323-poweroff.c @@ -57,6 +57,9 @@ static int mt6323_pwrc_probe(struct platform_device *pdev) return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EINVAL; + pwrc->base = res->start; pwrc->regmap = mt6397_chip->regmap; pwrc->dev = &pdev->dev;