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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-03 15:03:02 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-03 15:03:02 +0200 |
| commit | a8cac817764a494705aebd99fd51bdf6cdc28ec9 (patch) | |
| tree | 202847337f42b188755a53a7b57b502a7cdc0ad3 /drivers/infiniband/ulp/ipoib/ipoib_multicast.c | |
| parent | b4b3bd96f26586e53ab5482f1869221dd1b5ac36 (diff) | |
| parent | 543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff) | |
Merge commit 'v2.6.26-rc8' into x86/mce
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_multicast.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index d00a2c174ae..3f663fb852c 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -194,7 +194,13 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, /* Set the cached Q_Key before we attach if it's the broadcast group */ if (!memcmp(mcast->mcmember.mgid.raw, priv->dev->broadcast + 4, sizeof (union ib_gid))) { + spin_lock_irq(&priv->lock); + if (!priv->broadcast) { + spin_unlock_irq(&priv->lock); + return -EAGAIN; + } priv->qkey = be32_to_cpu(priv->broadcast->mcmember.qkey); + spin_unlock_irq(&priv->lock); priv->tx_wr.wr.ud.remote_qkey = priv->qkey; } |