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IPoIB: Take dev->xmit_lock around mc_list accesses

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dev->mc_list accesses must be protected by dev->xmit_lock.
Found by Eli Cohen <eli@mellanox.co.il>.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Michael S. Tsirkin 2006-01-11 11:47:34 -08:00 committed by Roland Dreier
parent 97460df37e
commit 78bfe0b5b6
1 changed files with 5 additions and 2 deletions
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7
drivers/infiniband/ulp/ipoib/ipoib_multicast.c
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@ -827,7 +827,8 @@ void ipoib_mcast_restart_task(void *dev_ptr)
ipoib_mcast_stop_thread(dev, 0);
spin_lock_irqsave(&priv->lock, flags);
spin_lock_irqsave(&dev->xmit_lock, flags);
spin_lock(&priv->lock);
/*
* Unfortunately, the networking core only gives us a list of all of
@ -899,7 +900,9 @@ void ipoib_mcast_restart_task(void *dev_ptr)
list_add_tail(&mcast->list, &remove_list);
}
}
spin_unlock_irqrestore(&priv->lock, flags);
spin_unlock(&priv->lock);
spin_unlock_irqrestore(&dev->xmit_lock, flags);
/* We have to cancel outside of the spinlock */
list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {