[PATCH] dm: kcopyd.c: make client_add() return void

kcopyd.c: client_add() can return void instead of an int, which will eliminate
an unnecessary error path in kcopyd_client_create().
Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/md/kcopyd.c

@@ -573,12 +573,11 @@ int kcopyd_cancel(struct kcopyd_job *job, int block)
 static DECLARE_MUTEX(_client_lock);
 static LIST_HEAD(_clients);
 
-static int client_add(struct kcopyd_client *kc)
+static void client_add(struct kcopyd_client *kc)
 {
 	down(&_client_lock);
 	list_add(&kc->list, &_clients);
 	up(&_client_lock);
-	return 0;
 }
 
 static void client_del(struct kcopyd_client *kc)
@@ -668,15 +667,7 @@ int kcopyd_client_create(unsigned int nr_pages, struct kcopyd_client **result)
 		return r;
 	}
 
-	r = client_add(kc);
-	if (r) {
-		dm_io_put(nr_pages);
-		client_free_pages(kc);
-		kfree(kc);
-		kcopyd_exit();
-		return r;
-	}
-
+	client_add(kc);
 	*result = kc;
 	return 0;
 }