drm/amd/display: add NULL pointer check

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[Why]
In virtual link use case, link->ddc could be NULL.

[How]
Add null pointer check to avoid undefined behavior.

Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Reviewed-by: Hansen Dsouza <hansen.dsouza@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Charlene Liu 2023-01-31 12:51:40 -05:00 • committed by Alex Deucher

parent ed6941b632

commit f0584be558

1 changed files with 10 additions and 6 deletions

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drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

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