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Commit 4f71055a authored by Michael S. Tsirkin's avatar Michael S. Tsirkin Committed by Roland Dreier
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IPoIB: protect child list in ipoib_ib_dev_flush 



race condition: ipoib_ib_dev_flush is accessing child list without locks.

Signed-off-by: default avatarMichael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 2e86541e

drivers/infiniband/ulp/ipoib/ipoib_ib.c

+4 −0
Original line number Diff line number Diff line
@@ -608,9 +608,13 @@ void ipoib_ib_dev_flush(void *_dev) 
	if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))

		ipoib_ib_dev_up(dev);



	down(&priv->vlan_mutex);



	/* Flush any child interfaces too */

	list_for_each_entry(cpriv, &priv->child_intfs, list)

		ipoib_ib_dev_flush(&cpriv->dev);



	up(&priv->vlan_mutex);

}



void ipoib_ib_dev_cleanup(struct net_device *dev)