drm/amd/display: Fix null check for pipe_ctx->plane_state in resource_build_scaling_params

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[ Upstream commit 374c9faac5 ]

Null pointer dereference issue could occur when pipe_ctx->plane_state
is null. The fix adds a check to ensure 'pipe_ctx->plane_state' is not
null before accessing. This prevents a null pointer dereference.

Found by code review.

Fixes: 3be5262e35 ("drm/amd/display: Rename more dc_surface stuff to plane_state")
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 63e6a77ccf)
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Ma Ke 2025-02-26 16:37:31 +08:00 • committed by Greg Kroah-Hartman

parent 53ce3ffe7b

commit f435192e00

1 changed files with 2 additions and 1 deletions

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drivers/gpu/drm/amd/display/dc/core/dc_resource.c

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