[openib-general] [PATCH 01/10] IPoIB: fix module removal race

[Roland Dreier]

From: Michael S. Tsirkin <mst at mellanox.co.il>

Since ipoib uses queue_delayed_work to run flush task on port state events,
it must flush scheduled work after unregistering the event handler.

Signed-off-by: Michael S. Tsirkin <mst at mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd at cisco.com>

---

 drivers/infiniband/ulp/ipoib/ipoib_main.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

b21607256f3370b9eba48cd0b67e8686c6b51a64
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -1005,6 +1005,7 @@ debug_failed:
 
 register_failed:
 	ib_unregister_event_handler(&priv->event_handler);
+	flush_scheduled_work();
 
 event_failed:
 	ipoib_dev_cleanup(priv->dev);
@@ -1057,6 +1058,7 @@ static void ipoib_remove_one(struct ib_d
 
 	list_for_each_entry_safe(priv, tmp, dev_list, list) {
 		ib_unregister_event_handler(&priv->event_handler);
+		flush_scheduled_work();
 
 		unregister_netdev(priv->dev);
 		ipoib_dev_cleanup(priv->dev);