drm/sti: avoid potential dereference of error pointers in sti_gdp_atomic_check

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commit e965e771b0 upstream.

The return value of drm_atomic_get_crtc_state() needs to be
checked. To avoid use of error pointer 'crtc_state' in case
of the failure.

Cc: stable@vger.kernel.org
Fixes: dd86dc2f9a ("drm/sti: implement atomic_check for the planes")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Acked-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240909063359.1197065-1-make24@iscas.ac.cn
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ma Ke 2024-09-09 14:33:59 +08:00 • committed by Greg Kroah-Hartman

parent 837eb99ad3

commit 3cf2e7c448

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/sti/sti_gdp.c

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