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authorDavid S. Miller <davem@davemloft.net>2017-06-30 12:43:08 -0400
committerDavid S. Miller <davem@davemloft.net>2017-06-30 12:43:08 -0400
commitb07911593719828cac023bdcf6bf4da1c9ba546f (patch)
treec4d2f66e6f2506e5b5439ffca0449e646f677b33 /net/ipv6/route.c
parent52a623bd6189b6ea8f06a0d7594c7604deaab24a (diff)
parent4d8a991d460d4fa4829beaffdcba45a217ca0fa7 (diff)
downloadop-kernel-dev-b07911593719828cac023bdcf6bf4da1c9ba546f.zip
op-kernel-dev-b07911593719828cac023bdcf6bf4da1c9ba546f.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
A set of overlapping changes in macvlan and the rocker driver, nothing serious. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/route.c')
-rw-r--r--net/ipv6/route.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 2e44900..0488a24c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3730,7 +3730,11 @@ static int ip6_route_dev_notify(struct notifier_block *this,
net->ipv6.ip6_blk_hole_entry->dst.dev = dev;
net->ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(dev);
#endif
- } else if (event == NETDEV_UNREGISTER) {
+ } else if (event == NETDEV_UNREGISTER &&
+ dev->reg_state != NETREG_UNREGISTERED) {
+ /* NETDEV_UNREGISTER could be fired for multiple times by
+ * netdev_wait_allrefs(). Make sure we only call this once.
+ */
in6_dev_put(net->ipv6.ip6_null_entry->rt6i_idev);
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
in6_dev_put(net->ipv6.ip6_prohibit_entry->rt6i_idev);
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