drm/amdgpu: add check for callback
authorChunming Zhou <david1.zhou@amd.com>
Tue, 28 Jul 2015 08:11:52 +0000 (16:11 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 17 Aug 2015 20:50:39 +0000 (16:50 -0400)
it is possible that the callback isn't defined sometimes.

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian K?nig <christian.koenig@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

index 9ff4d2756a6f967d8f13ff8764c174d7655618ab..c41360e443be6e802f83b3df29722b7a46ee753c 100644 (file)
@@ -137,7 +137,8 @@ static void amdgpu_job_work_func(struct work_struct *work)
                container_of(work, struct amdgpu_cs_parser,
                             job_work);
        mutex_lock(&sched_job->job_lock);
-       sched_job->free_job(sched_job);
+       if (sched_job->free_job)
+               sched_job->free_job(sched_job);
        mutex_unlock(&sched_job->job_lock);
        /* after processing job, free memory */
        kfree(sched_job);