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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2021-12-20 11:38:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 13:03:49 +0300 |
| commit | 4849eca4fc6fc35fdf3e667110fd8156fe77f90a (patch) | |
| tree | 0f8b7e9badd541435238b643ed8b72d0d419aab1 /drivers/power | |
| parent | a3b31433147bc793d2adccccecde804ec8e17a57 (diff) | |
| download | linux-4849eca4fc6fc35fdf3e667110fd8156fe77f90a.tar.xz | |
power: reset: mt6397: Check for null res pointer
[ 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>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/reset/mt6323-poweroff.c | 3 |
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; |