diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2018-08-03 10:40:20 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-13 17:29:44 -0500 |
| commit | dddc0557e3a02499ce336b1e2e67f5afaecccc80 (patch) | |
| tree | 04b7289bad3a6e91dabc2fc69bf05ea44c1089bc /drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | |
| parent | 433149130c31de3f63b17b4ce08b45dab208f7e8 (diff) | |
drm/amd/display: Guard against null crtc in CRC IRQ
[Why]
A null pointer deference can occur if crtc is null in
amdgpu_dm_crtc_handle_crc_irq. This can happen if get_crtc_by_otg_inst
returns NULL during dm_crtc_high_irq, leading to a hang in some IGT
test cases.
[How]
Check that CRTC is non-null before accessing its fields.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c')
0 files changed, 0 insertions, 0 deletions