Target/iser: Get isert_conn reference once got to connected_handler

commit c2f88b17a1d97ca4ecd96cc22333a7a4f1407d39 upstream.

In case the connection didn't reach connected state, disconnected
handler will never be invoked thus the second kref_put on
isert_conn will be missing.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 0e93152..9908c99 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -404,7 +404,6 @@
 	init_completion(&isert_conn->conn_wait);
 	init_completion(&isert_conn->conn_wait_comp_err);
 	kref_init(&isert_conn->conn_kref);
-	kref_get(&isert_conn->conn_kref);
 	mutex_init(&isert_conn->conn_mutex);
 
 	cma_id->context = isert_conn;
@@ -530,7 +529,9 @@
 static void
 isert_connected_handler(struct rdma_cm_id *cma_id)
 {
-	return;
+	struct isert_conn *isert_conn = cma_id->context;
+
+	kref_get(&isert_conn->conn_kref);
 }
 
 static void