commit 95ae6b228f814fc0528d0506ee9f18ac333d6851
author Eric Dumazet <eric.dumazet@gmail.com> Wed Sep 15 04:04:31 2010 +0000
committer David S. Miller <davem@davemloft.net> Wed Sep 15 22:06:05 2010 -0700
tree d5287f3dee478e1bd5fa79e63192447c5bc91e92
parent 9e0064a5456fd75fd7c70f6f3692c7f732f91a65

ipv4: ip_ptr cleanups

dev->ip_ptr is protected by rtnl and rcu.

Yet some places dont use appropriate primitives and/or locking rules.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/dev.c

diff --git a/net/core/dev.c b/net/core/dev.c
index fc2dc93..5bdce97 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5286,7 +5286,7 @@
 
 		/* paranoia */
 		BUG_ON(atomic_read(&dev->refcnt));
-		WARN_ON(dev->ip_ptr);
+		WARN_ON(rcu_dereference_raw(dev->ip_ptr));
 		WARN_ON(dev->ip6_ptr);
 		WARN_ON(dev->dn_ptr);