IPoIB: Don't attempt to release resources on error flow

If the ipoib client info isn't found on the _remove_one callback, we
must not attempt to scan the returned null list.  Found by Coverity.

Signed-off-by: Itai Garbi <igarbi@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 4fe44eba2f9f..66d6da90982f 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -1693,6 +1693,8 @@ static void ipoib_remove_one(struct ib_device *device)
                 return;
 
         dev_list = ib_get_client_data(device, &ipoib_client);
+        if (!dev_list)
+                return;
 
         list_for_each_entry_safe(priv, tmp, dev_list, list) {
                 ib_unregister_event_handler(&priv->event_handler);