drm/amdkfd: Fix Unchecked Return Value

Properly check the return values for function, as done elsewhere.

Signed-off-by: Sunday Clement <Sunday.Clement@amd.com>

Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Sundance636

drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c

@@ -1897,16 +1897,19 @@ static int start_cpsch(struct device_queue_manager *dqm)
 
 static int stop_cpsch(struct device_queue_manager *dqm)
 {
+	int ret = 0;
+
 	dqm_lock(dqm);
 	if (!dqm->sched_running) {
 		dqm_unlock(dqm);
 		return 0;
 	}
 
 	if (!dqm->dev->kfd->shared_resources.enable_mes)
-		unmap_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 0, USE_DEFAULT_GRACE_PERIOD, false);
+		ret = unmap_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES,
+								0, USE_DEFAULT_GRACE_PERIOD, false);
 	else
-		remove_all_kfd_queues_mes(dqm);
+		ret = remove_all_kfd_queues_mes(dqm);
 
 	dqm->sched_running = false;
 
@@ -1920,7 +1923,7 @@ static int stop_cpsch(struct device_queue_manager *dqm)
 	dqm->detect_hang_info = NULL;
 	dqm_unlock(dqm);
 
-	return 0;
+	return ret;
 }
 
 static int create_kernel_queue_cpsch(struct device_queue_manager *dqm,