From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 14 Nov 2012 02:51:04 +0000 (+0000)
Subject: net: correct check in dev_addr_del()
X-Git-Tag: v3.2.35~64
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ff5d468a3f897811682442ae2a0e6b303679d8a6;p=karo-tx-linux.git

net: correct check in dev_addr_del()

[ Upstream commit a652208e0b52c190e57f2a075ffb5e897fe31c3b ]

Check (ha->addr == dev->dev_addr) is always true because dev_addr_init()
sets this. Correct the check to behave properly on addr removal.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 277faef9148d..0387da0e1b5d 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -308,7 +308,8 @@ int dev_addr_del(struct net_device *dev, unsigned char *addr,
 	 */
 	ha = list_first_entry(&dev->dev_addrs.list,
 			      struct netdev_hw_addr, list);
-	if (ha->addr == dev->dev_addr && ha->refcount == 1)
+	if (!memcmp(ha->addr, addr, dev->addr_len) &&
+	    ha->type == addr_type && ha->refcount == 1)
 		return -ENOENT;
 
 	err = __hw_addr_del(&dev->dev_addrs, addr, dev->addr_len,