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authorEric W. Biederman <ebiederm@xmission.com>2011-02-20 11:49:45 -0800
committerDavid S. Miller <davem@davemloft.net>2011-02-20 11:49:45 -0800
commit5f04d5068a90602b93a7953e9a47c496705c6976 (patch)
tree272ea087a13648cb3dd34e0feed08cfc4b1e5e2c /net
parent2205a6ea93fea76f88b43727fea53f3ce3790d6f (diff)
downloadlinux-linaro-stable-5f04d5068a90602b93a7953e9a47c496705c6976.tar.gz
net: Fix more stale on-stack list_head objects.
From: Eric W. Biederman <ebiederm@xmission.com> In the beginning with batching unreg_list was a list that was used only once in the lifetime of a network device (I think). Now we have calls using the unreg_list that can happen multiple times in the life of a network device like dev_deactivate and dev_close that are also using the unreg_list. In addition in unregister_netdevice_queue we also do a list_move because for devices like veth pairs it is possible that unregister_netdevice_queue will be called multiple times. So I think the change below to fix dev_deactivate which Eric D. missed will fix this problem. Now to go test that. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/iface.c1
-rw-r--r--net/sched/sch_generic.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 8acba456744e..7a10a8d1b2d0 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1229,6 +1229,7 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
}
mutex_unlock(&local->iflist_mtx);
unregister_netdevice_many(&unreg_list);
+ list_del(&unreg_list);
}
static u32 ieee80211_idle_off(struct ieee80211_local *local,
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 34dc598440a2..1bc698039ae2 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -839,6 +839,7 @@ void dev_deactivate(struct net_device *dev)
list_add(&dev->unreg_list, &single);
dev_deactivate_many(&single);
+ list_del(&single);
}
static void dev_init_scheduler_queue(struct net_device *dev,