[ofa-general] [PATCH] ipoib: take rtnl_lock when calling ipoib_open directly

[Yossi Etigin]

  ipoib_open() needs to be called with rtnl_lock because it's normally
called by netlink with rtnl_lock taken. Moreover, it calls dev_change_flags()
which needs rtnl_lock.

Signed-off-by: Yossi Etigin <yosefe at voltaire.com>

--

Index: b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
===================================================================
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c	2009-03-10 18:21:47.000000000 +0200
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c	2009-03-10 19:21:22.000000000 +0200
@@ -1039,8 +1039,11 @@ void ipoib_pkey_poll(struct work_struct 
 
 	ipoib_pkey_dev_check_presence(dev);
 
-	if (test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags))
+	if (test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) {
+		rtnl_lock();
 		ipoib_open(dev);
+		rtnl_unlock();
+	}
 	else {
 		mutex_lock(&pkey_mutex);
 		if (!test_bit(IPOIB_PKEY_STOP, &priv->flags))