net/bridge/br_multicast: remove redundant variable "err"

The err is not modified after initalization, So remove it and make
it to be void function.

Signed-off-by: zhong jiang <zhongjiang@huawei.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 920665d..20ed7ad 100644 (file)
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1423,10 +1423,10 @@ static void br_multicast_query_received(struct net_bridge *br,
        br_multicast_mark_router(br, port);
 }
 
-static int br_ip4_multicast_query(struct net_bridge *br,
-                                 struct net_bridge_port *port,
-                                 struct sk_buff *skb,
-                                 u16 vid)
+static void br_ip4_multicast_query(struct net_bridge *br,
+                                  struct net_bridge_port *port,
+                                  struct sk_buff *skb,
+                                  u16 vid)
 {
        const struct iphdr *iph = ip_hdr(skb);
        struct igmphdr *ih = igmp_hdr(skb);
@@ -1439,7 +1439,6 @@ static int br_ip4_multicast_query(struct net_bridge *br,
        unsigned long now = jiffies;
        unsigned int offset = skb_transport_offset(skb);
        __be32 group;
-       int err = 0;
 
        spin_lock(&br->multicast_lock);
        if (!netif_running(br->dev) ||
@@ -1498,7 +1497,6 @@ static int br_ip4_multicast_query(struct net_bridge *br,
 
 out:
        spin_unlock(&br->multicast_lock);
-       return err;
 }
 
 #if IS_ENABLED(CONFIG_IPV6)
@@ -1828,7 +1826,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
                err = br_ip4_multicast_igmp3_report(br, port, skb_trimmed, vid);
                break;
        case IGMP_HOST_MEMBERSHIP_QUERY:
-               err = br_ip4_multicast_query(br, port, skb_trimmed, vid);
+               br_ip4_multicast_query(br, port, skb_trimmed, vid);
                break;
        case IGMP_HOST_LEAVE_MESSAGE:
                br_ip4_multicast_leave_group(br, port, ih->group, vid, src);