diff options
| author | Andrey Grodzovsky <Andrey.Grodzovsky@amd.com> | 2017-03-16 15:51:00 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-26 17:20:23 -0400 |
| commit | 53d35dc60d386cdf1d04a318dc010524bf5607a3 (patch) | |
| tree | 013b2e4c69761d3a2c77a27ae17e84a222ddd049 /drivers/gpu/drm/amd/display/amdgpu_dm | |
| parent | 0e19401f9506e710379396479c3824d80ccdc332 (diff) | |
| download | linux-53d35dc60d386cdf1d04a318dc010524bf5607a3.tar.bz2 | |
drm/amd/display: Fix the NULL pointer. (v2)
ret value in amdgpu_dm_atomic_check was not rest to EINVAL
after drm_atomic_add_affected_planes and by this making
any subsequent validation failure pass when returning
to atomic_check.
v2: Add WARN_ON print for dc_commit_streams in
amdgpu_dm_atomic_commit_tail since this should never
fail.
Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c index 1c1c643439b8..7f2d17784a8e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c @@ -2392,7 +2392,7 @@ void amdgpu_dm_atomic_commit_tail( } /* DC is optimized not to do anything if 'streams' didn't change. */ - dc_commit_streams(dm->dc, commit_streams, commit_streams_count); + WARN_ON(!dc_commit_streams(dm->dc, commit_streams, commit_streams_count)); list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); @@ -2858,6 +2858,8 @@ int amdgpu_dm_atomic_check(struct drm_device *dev, ret = drm_atomic_add_affected_planes(state, crtc); if (ret) return ret; + + ret = -EINVAL; } for (i = 0; i < set_count; i++) { |