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authorstephen hemminger <shemminger@vyatta.com>2010-11-15 06:38:13 +0000
committerDavid S. Miller <davem@davemloft.net>2010-11-15 11:13:17 -0800
commitb5ed54e94d324f17c97852296d61a143f01b227a (patch)
tree2104d3cde24efc1145bc71beb4b61d79ed841132 /net/bridge/br_notify.c
parent61391cde9eefac5cfcf6d214aa80c77e58b1626b (diff)
bridge: fix RCU races with bridge port
The macro br_port_exists() is not enough protection when only RCU is being used. There is a tiny race where other CPU has cleared port handler hook, but is bridge port flag might still be set. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_notify.c')
-rw-r--r--net/bridge/br_notify.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index 404d4e14c6a..ef2175c8b91 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -32,7 +32,7 @@ struct notifier_block br_device_notifier = {
static int br_device_event(struct notifier_block *unused, unsigned long event, void *ptr)
{
struct net_device *dev = ptr;
- struct net_bridge_port *p = br_port_get(dev);
+ struct net_bridge_port *p;
struct net_bridge *br;
int err;