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authorJeff Garzik <jgarzik@pobox.com>2005-08-24 01:02:24 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-08-24 01:02:24 -0400
commit343b0597297c3190647854881c087c01faf40a6f (patch)
tree81cf818936bfd4aff891d1ca4d4ea4d47b2d1631 /net/ipv4/tcp_ipv4.c
parentb2dabd5aadae6a93026f35269e1e53c1a0c6de2d (diff)
parentb2382b363df828f25e35ed8b70a3da33b29b2a64 (diff)
/spare/repo/netdev-2.6 branch 'ieee80211'
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 5d91213d34c..67c670886c1 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -242,9 +242,14 @@ static int tcp_v4_get_port(struct sock *sk, unsigned short snum)
tcp_port_rover = rover;
spin_unlock(&tcp_portalloc_lock);
- /* Exhausted local port range during search? */
+ /* Exhausted local port range during search? It is not
+ * possible for us to be holding one of the bind hash
+ * locks if this test triggers, because if 'remaining'
+ * drops to zero, we broke out of the do/while loop at
+ * the top level, not from the 'break;' statement.
+ */
ret = 1;
- if (remaining <= 0)
+ if (unlikely(remaining <= 0))
goto fail;
/* OK, here is the one we will use. HEAD is