[PATCH -next] connector: simplify the return expression of cn_add_callback()

[Qinglang Miao]

Simplify the return expression.

Signed-off-by: Qinglang Miao <miaoqinglang@xxxxxxxxxx>
---
 drivers/connector/connector.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index 2d22d6bf5..7d59d18c6 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -197,17 +197,12 @@ int cn_add_callback(struct cb_id *id, const char *name,
 		    void (*callback)(struct cn_msg *,
 				     struct netlink_skb_parms *))
 {
-	int err;
 	struct cn_dev *dev = &cdev;
 
 	if (!cn_already_initialized)
 		return -EAGAIN;
 
-	err = cn_queue_add_callback(dev->cbdev, name, id, callback);
-	if (err)
-		return err;
-
-	return 0;
+	return cn_queue_add_callback(dev->cbdev, name, id, callback);
 }
 EXPORT_SYMBOL_GPL(cn_add_callback);
 
-- 
2.23.0