IB/ehca: Fix mem leak of firmware ctrlblock in ehca_create_srq()

Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index b10c7df..2591651 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -890,6 +890,8 @@
 		goto create_srq2;
 	}
 
+	ehca_free_fw_ctrlblock(mqpcb);
+
 	return &my_qp->ib_srq;
 
 create_srq2: