drm/panel/panel-tpo-tpg110: fix a possible null pointer dereference

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[ Upstream commit f22def5970 ]

In tpg110_get_modes(), the return value of drm_mode_duplicate() is
assigned to mode, which will lead to a NULL pointer dereference on
failure of drm_mode_duplicate(). Add a check to avoid npd.

Signed-off-by: Ma Ke <make_ruc2021@163.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20231009090446.4043798-1-make_ruc2021@163.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231009090446.4043798-1-make_ruc2021@163.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Ma Ke 2023-10-09 17:04:46 +08:00 • committed by Greg Kroah-Hartman

parent 8a9dd36fcb

commit eaede6900c

1 changed files with 2 additions and 0 deletions

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drivers/gpu/drm/panel/panel-tpo-tpg110.c

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