workqueue: Simplify goto statement

Use a simple if-statement to replace the cumbersome goto-statement in
workqueue_set_unbound_cpumask().

Cc: Waiman Long <longman@redhat.com>
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

kernel/workqueue.c

@@ -7197,15 +7197,10 @@ static int workqueue_set_unbound_cpumask(cpumask_var_t cpumask)
 	 */
 	cpumask_and(cpumask, cpumask, cpu_possible_mask);
 	if (!cpumask_empty(cpumask)) {
+		ret = 0;
 		apply_wqattrs_lock();
-		if (cpumask_equal(cpumask, wq_unbound_cpumask)) {
-			ret = 0;
-			goto out_unlock;
-		}
-
-		ret = workqueue_apply_unbound_cpumask(cpumask);
-
-out_unlock:
+		if (!cpumask_equal(cpumask, wq_unbound_cpumask))
+			ret = workqueue_apply_unbound_cpumask(cpumask);
 		if (!ret)
 			cpumask_copy(wq_requested_unbound_cpumask, cpumask);
 		apply_wqattrs_unlock();