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Diffstat (limited to 'net/ipv6/addrconf.c')
-rw-r--r--net/ipv6/addrconf.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index dd3be06d5a06..6a576ff92c39 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4032,12 +4032,6 @@ static void addrconf_dad_work(struct work_struct *w)
rtnl_lock();
- /* check if device was taken down before this delayed work
- * function could be canceled
- */
- if (idev->dead || !(idev->if_flags & IF_READY))
- goto out;
-
spin_lock_bh(&ifp->lock);
if (ifp->state == INET6_IFADDR_STATE_PREDAD) {
action = DAD_BEGIN;
@@ -4083,6 +4077,11 @@ static void addrconf_dad_work(struct work_struct *w)
goto out;
write_lock_bh(&idev->lock);
+ if (idev->dead || !(idev->if_flags & IF_READY)) {
+ write_unlock_bh(&idev->lock);
+ goto out;
+ }
+
spin_lock(&ifp->lock);
if (ifp->state == INET6_IFADDR_STATE_DEAD) {
spin_unlock(&ifp->lock);