From 7bcb974ef6a0ae903888272c92c66ea779388c01 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Tue, 7 Feb 2006 16:39:26 -0800 Subject: [PATCH] IPoIB: Fix another send-only join race Further, there's an additional issue that I saw in testing: ipoib_mcast_send may get called when priv->broadcast is NULL (e.g. if the device was downed and then upped internally because of a port event). If this happends and the send-only join request gets completed before priv->broadcast is set, we get an oops. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 1c7148208ce..932bf139a65 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -701,7 +701,7 @@ void ipoib_mcast_send(struct net_device *dev, union ib_gid *mgid, */ spin_lock(&priv->lock); - if (!test_bit(IPOIB_MCAST_STARTED, &priv->flags)) { + if (!test_bit(IPOIB_MCAST_STARTED, &priv->flags) || !priv->broadcast) { ++priv->stats.tx_dropped; dev_kfree_skb_any(skb); goto unlock; -- 2.41.1