race condition: ipoib_ib_dev_flush is accessing child list without locks.
Signed-off-by: Michael S. Tsirkin <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
drivers/infiniband/ulp/ipoib/ipoib_ib.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
applies-to: e58f418dd8e64675b1dbaa6db92d7c1e606d1506
4f71055a45a503273c039d80db8ba9b13cb17549
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 54ef2fe..2388580 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -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)
---
0.99.9k
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