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authorJiasheng Jiang <jiasheng@iscas.ac.cn>2021-12-20 11:38:11 +0300
committerSebastian Reichel <sre@kernel.org>2022-01-03 20:30:21 +0300
commit1c1348bf056dee665760a3bd1cd30b0be7554fc2 (patch)
treeb3efab16ef53816dda65a6ac0683f4a04707f7b4 /drivers/power
parent9652c02428f3992129b73321fee32fe60b77c90f (diff)
downloadlinux-1c1348bf056dee665760a3bd1cd30b0be7554fc2.tar.xz
power: reset: mt6397: Check for null res pointer
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>
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/reset/mt6323-poweroff.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/power/reset/mt6323-poweroff.c b/drivers/power/reset/mt6323-poweroff.c
index 0532803e6cbc..d90e76fcb938 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;