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drm/scheduler: Set sched->thread to NULL on failure 

In cases where the scheduler instance is used as a base object of another
driver object, it's not clear if the driver can call scheduler cleanup on the
fail path. So, Set the sched->thread to NULL, so that the driver can safely
call drm_sched_fini() during cleanup.

Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sharat Masetty 2018-11-29 15:35:19 +05:30 committed by Alex Deucher
parent 8288b2e5ae
commit 9afd07566b
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/scheduler/sched_main.c
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@ -612,7 +612,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
long timeout,
const char *name)
{
int i;
int i, ret;
sched->ops = ops;
sched->hw_submission_limit = hw_submission;
sched->name = name;
@ -633,8 +633,10 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
/* Each scheduler will run on a seperate kernel thread */
sched->thread = kthread_run(drm_sched_main, sched, sched->name);
if (IS_ERR(sched->thread)) {
ret = PTR_ERR(sched->thread);
sched->thread = NULL;
DRM_ERROR("Failed to create scheduler for %s.\n", name);
return PTR_ERR(sched->thread);
return ret;
}
sched->ready = true;