On Mon, Nov 6, 2017 at 6:51 AM, Christian König
<christian.koenig@xxxxxxx> wrote:
> Am 06.11.2017 um 12:43 schrieb Dan Carpenter:
>>
>> backlight_device_register() never returns NULL, it returns error
>> pointers on error so the check here is wrong.
>>
>> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
>
> Acked-by: Christian König <christian.koenig@xxxxxxx>
Applied. thanks!
Alex
>
>>
>> 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 33a15a1d818c..75f9383f5b9b 100644
>> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> @@ -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);
>
>
>
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