firmware: meson_sm: fix to avoid potential NULL pointer dereference

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[ Upstream commit f2ed165619 ]

of_match_device() may fail and returns a NULL pointer.

Fix this by checking the return value of of_match_device.

Fixes: 8cde3c2153 ("firmware: meson_sm: Rework driver as a proper platform driver")
Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/tencent_AA08AAA6C4F34D53ADCE962E188A879B8206@qq.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Zhang Shurong 2023-07-15 22:13:38 +08:00 • committed by Greg Kroah-Hartman

parent 2965015006

commit bd3a6b6d5d

1 changed files with 2 additions and 0 deletions

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drivers/firmware/meson/meson_sm.c

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