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authorDavid Woodhouse <dwmw2@shinybook.infradead.org>2005-08-27 14:30:07 +0200
committerDavid Woodhouse <dwmw2@shinybook.infradead.org>2005-08-27 14:30:07 +0200
commitefda9452046bdd707b23a85b7846ec33548f84f1 (patch)
treef08c915049ea1829ba115cd41a0ba28ddf184e07 /net/ipv6/tcp_ipv6.c
parent[AUDIT] Allow filtering on system call success _or_ failure (diff)
parent[PATCH] Fix oops in sysfs_hash_and_remove_file() (diff)
downloadlinux-efda9452046bdd707b23a85b7846ec33548f84f1.tar.xz
linux-efda9452046bdd707b23a85b7846ec33548f84f1.zip
Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index f6e288dc116e..ef29cfd936d3 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -158,9 +158,14 @@ static int tcp_v6_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. */