diff options
| author | Shirish S <shirish.s@amd.com> | 2018-03-15 13:31:00 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-03-17 00:16:49 +0300 |
| commit | 6f4969ef0a2e6257c9f839eff06e6718b55c6bcd (patch) | |
| tree | 27d95071ed33b211c7c220bd68a26f5a7fb844b4 | |
| parent | 5e9a4f0873fd357bdec29b3b96667ef0cea64c46 (diff) | |
| download | linux-6f4969ef0a2e6257c9f839eff06e6718b55c6bcd.tar.xz | |
drm/amd/display: fix dereferencing possible ERR_PTR()
This patch fixes static checker warning caused by
"36cc549d5986: "drm/amd/display: disable CRTCs with
NULL FB on their primary plane (V2)"
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 9e2f673cb6e1..ae512ecb65ee 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4854,6 +4854,9 @@ static int dm_atomic_check_plane_state_fb(struct drm_atomic_state *state, return -EDEADLK; crtc_state = drm_atomic_get_crtc_state(plane_state->state, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + if (crtc->primary == plane && crtc_state->active) { if (!plane_state->fb) return -EINVAL; |