power: reset: mt6397: Check for null res pointer
authorJiasheng Jiang <jiasheng@iscas.ac.cn>
Mon, 20 Dec 2021 08:38:11 +0000 (16:38 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 27 Jan 2022 10:03:49 +0000 (11:03 +0100)
commit4849eca4fc6fc35fdf3e667110fd8156fe77f90a
tree0f8b7e9badd541435238b643ed8b72d0d419aab1
parenta3b31433147bc793d2adccccecde804ec8e17a57
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>
drivers/power/reset/mt6323-poweroff.c