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bridge: ensure to unlock in error path in br_multicast_query().

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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki 2010-03-13 12:27:21 -08:00 committed by David S. Miller
parent c251c7f738
commit bec68ff163
1 changed files with 7 additions and 4 deletions
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11
net/bridge/br_multicast.c
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@ -823,6 +823,7 @@ static int br_multicast_query(struct net_bridge *br,
unsigned long max_delay;
unsigned long now = jiffies;
__be32 group;
int err = 0;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) ||
@ -841,12 +842,14 @@ static int br_multicast_query(struct net_bridge *br,
group = 0;
}
} else {
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query)))
return -EINVAL;
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query))) {
err = -EINVAL;
goto out;
}
ih3 = igmpv3_query_hdr(skb);
if (ih3->nsrcs)
return 0;
goto out;
max_delay = ih3->code ? 1 :
IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE);
@ -876,7 +879,7 @@ static int br_multicast_query(struct net_bridge *br,
out:
spin_unlock(&br->multicast_lock);
return 0;
return err;
}
static void br_multicast_leave_group(struct net_bridge *br,