drm/sched: Return an error code only as a constant in drm_sched_init()

Return an error code without storing it in an intermediate variable.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: https://patchwork.freedesktop.org/patch/msgid/85f8004e-f0c9-42d9-8c59-30f1b4e0b89e@web.deReviewed-by: Luben Tuikov <ltuikov89@gmail.com>
Signed-off-by: Luben Tuikov <ltuikov89@gmail.com>

drivers/gpu/drm/scheduler/sched_main.c

@@ -1249,7 +1249,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
 		   long timeout, struct workqueue_struct *timeout_wq,
 		   atomic_t *score, const char *name, struct device *dev)
 {
-	int i, ret;
+	int i;
 
 	sched->ops = ops;
 	sched->credit_limit = credit_limit;
@@ -1285,7 +1285,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
 
 		sched->own_submit_wq = true;
 	}
-	ret = -ENOMEM;
+
 	sched->sched_rq = kmalloc_array(num_rqs, sizeof(*sched->sched_rq),
 					GFP_KERNEL | __GFP_ZERO);
 	if (!sched->sched_rq)
@@ -1321,7 +1321,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
 	if (sched->own_submit_wq)
 		destroy_workqueue(sched->submit_wq);
 	drm_err(sched, "%s: Failed to setup GPU scheduler--out of memory\n", __func__);
-	return ret;
+	return -ENOMEM;
 }
 EXPORT_SYMBOL(drm_sched_init);