[PATCH] rtc: mt6397: Check for null res pointer
From: Jiasheng Jiang <hidden>
Date: 2021-12-20 08:38:34
Also in:
linux-arm-kernel, linux-mediatek, lkml
Subsystem:
mediatek board level shutdown drivers, system reset/shutdown drivers, the rest · Maintainers:
Sen Chu, Sean Wang, Macpaul Lin, Sebastian Reichel, Linus Torvalds
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 <redacted>
---
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 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;
--
2.25.1