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authorMichael S. Tsirkin <mst@mellanox.co.il>2006-02-07 19:39:26 -0500
committerRoland Dreier <rolandd@cisco.com>2006-02-07 19:39:26 -0500
commit7bcb974ef6a0ae903888272c92c66ea779388c01 (patch)
tree926245a2e120dd5884f3bab92020612fcfbd78bf
parent479a079663bd4c5f3d2714643b1b8c406aaba3e0 (diff)
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 <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_multicast.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 1c7148208ce8..932bf139a65d 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,
701 */ 701 */
702 spin_lock(&priv->lock); 702 spin_lock(&priv->lock);
703 703
704 if (!test_bit(IPOIB_MCAST_STARTED, &priv->flags)) { 704 if (!test_bit(IPOIB_MCAST_STARTED, &priv->flags) || !priv->broadcast) {
705 ++priv->stats.tx_dropped; 705 ++priv->stats.tx_dropped;
706 dev_kfree_skb_any(skb); 706 dev_kfree_skb_any(skb);
707 goto unlock; 707 goto unlock;