Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 304/846] power: reset: mt6397: Check for null res pointer | Date | Mon, 24 Jan 2022 19:37:01 +0100 |
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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; -- 2.34.1
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