diff options
| author | Ernst Sjöstrand <ernstp@gmail.com> | 2017-11-07 21:06:59 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-11-07 16:22:22 -0500 |
| commit | 423788c7a866cb7f5265af9b96952e8a4bf48fd5 (patch) | |
| tree | 11969e1ca0c9feebae845eb86531e9fd7bc449f3 /drivers/gpu/drm/amd/display/amdgpu_dm | |
| parent | 2a55f09643acf51ec0f1c72d92fdd4515e9a8aa7 (diff) | |
amdgpu/dc: Fix missing null checks in amdgpu_dm.c
From smatch:
error: we previously assumed X could be null
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Ernst Sjöstrand <ernstp@gmail.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.c | 17 |
1 files changed, 12 insertions, 5 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 8ee1bff09a6c..cb45a3dc5a65 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -430,10 +430,12 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) /* Display Core create. */ adev->dm.dc = dc_create(&init_data); - if (adev->dm.dc) + if (adev->dm.dc) { DRM_INFO("Display Core initialized!\n"); - else + } else { DRM_INFO("Display Core failed to initialize!\n"); + goto error; + } INIT_WORK(&adev->dm.mst_hotplug_work, hotplug_notify_work_func); @@ -2273,7 +2275,7 @@ decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode, } } -static void create_fake_sink(struct amdgpu_dm_connector *aconnector) +static int create_fake_sink(struct amdgpu_dm_connector *aconnector) { struct dc_sink *sink = NULL; struct dc_sink_init_data sink_init_data = { 0 }; @@ -2282,14 +2284,18 @@ static void create_fake_sink(struct amdgpu_dm_connector *aconnector) sink_init_data.sink_signal = aconnector->dc_link->connector_signal; sink = dc_sink_create(&sink_init_data); - if (!sink) + if (!sink) { DRM_ERROR("Failed to create sink!\n"); + return -ENOMEM; + } sink->sink_signal = SIGNAL_TYPE_VIRTUAL; aconnector->fake_enable = true; aconnector->dc_sink = sink; aconnector->dc_link->local_sink = sink; + + return 0; } static struct dc_stream_state * @@ -2323,7 +2329,8 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, if (aconnector->mst_port) goto stream_create_fail; - create_fake_sink(aconnector); + if (create_fake_sink(aconnector)) + goto stream_create_fail; } stream = dc_create_stream_for_sink(aconnector->dc_sink); |