diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:25:41 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:25:41 +0200 |
commit | 9ae76f5d8ab546660cf517bb63c64de51800955d (patch) | |
tree | e6470cb84456e71f5e7d9a0131b7720c61cb334e /drivers/infiniband/ulp/ipoib/ipoib_multicast.c | |
parent | 948f984df52511bb0efa5c026813b0c34de43aa0 (diff) | |
parent | 066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff) |
Merge branch 'linus' into safe-poison-pointerstip-safe-poison-pointers-2008-06-16_09.25_Mon
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 d00a2c174aee..3f663fb852c1 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; } |