Client reference fixes

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/gfio.c b/gfio.c
index 76bbbf5..57a333b 100644
--- a/gfio.c
+++ b/gfio.c
@@ -1736,6 +1736,7 @@
 		i++;
 	}
 
+	ge->nr_job_files = 0;
 	return ret;
 }