diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2018-01-27 17:35:29 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-01-27 17:35:29 +0300 |
| commit | 303c146df1c4574db3495d9acc5c440dd46c6b0f (patch) | |
| tree | fbcea289aea24da8a44c7677a776988bb3c8bcbe /drivers/infiniband/ulp/ipoib/ipoib_multicast.c | |
| parent | b1a31a5f5f27ff8aba42b545a1c721941f735107 (diff) | |
| parent | d5421ea43d30701e03cadc56a38854c36a8b4433 (diff) | |
| download | linux-303c146df1c4574db3495d9acc5c440dd46c6b0f.tar.xz | |
Merge branch 'timers/urgent' into timers/core
Pick up urgent bug fix and resolve the conflict.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_multicast.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 93e149efc1f5..9b3f47ae2016 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -816,7 +816,10 @@ void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb) spin_lock_irqsave(&priv->lock, flags); if (!neigh) { neigh = ipoib_neigh_alloc(daddr, dev); - if (neigh) { + /* Make sure that the neigh will be added only + * once to mcast list. + */ + if (neigh && list_empty(&neigh->list)) { kref_get(&mcast->ah->ref); neigh->ah = mcast->ah; list_add_tail(&neigh->list, &mcast->neigh_list); |