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

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[ Upstream commit 2bc96c9507 ]

This commit addresses a null pointer dereference issue in
hwss_setup_dpp(). The 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.

Fixes: 0baae62463 ("drm/amd/display: Refactor fast update to use new HWSS build sequence")
Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Zicheng Qu <quzicheng@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Zicheng Qu 2024-11-05 14:01:37 +00:00 • committed by Greg Kroah-Hartman

parent 756f30dc27

commit 020002c761

1 changed files with 3 additions and 0 deletions

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

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