security: tomoyo: simplify the gc kthread creation

The code is doing the equivalent of the kthread_run macro.

Signed-off-by: Mike Danese <[e-mail]>
Acked-by: Tetsuo Handa <[e-mail]>
Signed-off-by: James Morris <[e-mail]>

security/tomoyo/gc.c

···
 		}
 	}
 	spin_unlock(&tomoyo_io_buffer_list_lock);
-	if (is_write) {
-		struct task_struct *task = kthread_create(tomoyo_gc_thread,
-							  NULL,
-							  "GC for TOMOYO");
-		if (!IS_ERR(task))
-			wake_up_process(task);
-	}
+	if (is_write)
+		kthread_run(tomoyo_gc_thread, NULL, "GC for TOMOYO");
 }