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| author |   Wayne Lin <wayne.lin@amd.com> | 2024-05-21 11:54:26 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2024-06-14 16:17:16 -0400 |
| commit | fcf6a49d79923a234844b8efe830a61f3f0584e4 (patch) | |
| tree | dbb968ce1d5d52793489e2871a56d34f1d694c12 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c | |
| parent | drm/amd/display: change dram_clock_latency to 34us for dcn35 (diff) | |
| download | wireguard-linux-fcf6a49d79923a234844b8efe830a61f3f0584e4.tar.xz wireguard-linux-fcf6a49d79923a234844b8efe830a61f3f0584e4.zip | |
drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
[Why]
When unplug one of monitors connected after mst hub, encounter null pointer dereference.
It's due to dc_sink get released immediately in early_unregister() or detect_ctx(). When
commit new state which directly referring to info stored in dc_sink will cause null pointer
dereference.
[how]
Remove redundant checking condition. Relevant condition should already be covered by checking
if dsc_aux is null or not. Also reset dsc_aux to NULL when the connector is disconnected.
Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c')
0 files changed, 0 insertions, 0 deletions