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drm/amd/display: checking for NULL instead of IS_ERR() 

backlight_device_register() never returns NULL, it returns error
pointers on error so the check here is wrong.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dan Carpenter 2017-11-06 14:43:41 +03:00 committed by Alex Deucher
parent 620fd73edf
commit 74baea4275
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -1296,7 +1296,7 @@ amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm)
&amdgpu_dm_backlight_ops,
&props);
if (NULL == dm->backlight_dev)
if (IS_ERR(dm->backlight_dev))
DRM_ERROR("DM: Backlight registration failed!\n");
else
DRM_DEBUG_DRIVER("DM: Registered Backlight device: %s\n", bl_name);