diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 621bce7e101c..ee652ef01534 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -381,6 +381,8 @@ static int fastrpc_map_lookup(struct fastrpc_user *fl, int fd,
 	}
 	spin_unlock(&fl->lock);
 
+	dma_buf_put(buf);
+
 	return ret;
 }