diff --git a/[refs] b/[refs]
index 962c294f9863..f8847c947240 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7b0f5df4c88bac46fe749d36d905fc7ad0296587
+refs/heads/master: 7f3abf5c7c9a9febdd643b9d4005382144525475
diff --git a/trunk/drivers/infiniband/hw/mlx4/mr.c b/trunk/drivers/infiniband/hw/mlx4/mr.c
index 87f5c5a87b98..8e4d26d56a95 100644
--- a/trunk/drivers/infiniband/hw/mlx4/mr.c
+++ b/trunk/drivers/infiniband/hw/mlx4/mr.c
@@ -205,6 +205,7 @@ struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd,
 		goto err_mr;
 
 	mr->ibmr.rkey = mr->ibmr.lkey = mr->mmr.key;
+	mr->umem = NULL;
 
 	return &mr->ibmr;