From: YueHaibing <yuehaibing@huawei.com>
Date: Mon, 17 Dec 2018 09:46:23 +0000 (+0800)
Subject: net: bridge: remove unneeded variable 'err'
X-Git-Tag: v5.0-rc1~129^2~52
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=a26d94bff4d5af7c9bf5d5e779282e2258966ec3;p=linux.git

net: bridge: remove unneeded variable 'err'

function br_multicast_toggle now always return 0,
so the variable 'err' is unneeded.
Also cleanup dead branch in br_changelink.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 879cd2315769..3aeff0895669 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1937,7 +1937,6 @@ static void br_multicast_start_querier(struct net_bridge *br,
 int br_multicast_toggle(struct net_bridge *br, unsigned long val)
 {
 	struct net_bridge_port *port;
-	int err = 0;
 
 	spin_lock_bh(&br->multicast_lock);
 	if (!!br_opt_get(br, BROPT_MULTICAST_ENABLED) == !!val)
@@ -1958,7 +1957,7 @@ int br_multicast_toggle(struct net_bridge *br, unsigned long val)
 unlock:
 	spin_unlock_bh(&br->multicast_lock);
 
-	return err;
+	return 0;
 }
 
 bool br_multicast_enabled(const struct net_device *dev)
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 935495b93a99..9c07591b0232 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1175,9 +1175,7 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
 	if (data[IFLA_BR_MCAST_SNOOPING]) {
 		u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
 
-		err = br_multicast_toggle(br, mcast_snooping);
-		if (err)
-			return err;
+		br_multicast_toggle(br, mcast_snooping);
 	}
 
 	if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {