From c90f1b3297943f2f142d8114bef1092f9ac9acef Mon Sep 17 00:00:00 2001
From: Jes Sorensen <Jes.Sorensen@redhat.com>
Date: Thu, 6 Jan 2011 17:02:23 +0100
Subject: [PATCH] do_snapshot_blkdev() error on missing snapshot_file argument

Current code does not support snapshot internally to the running
image. Error in case no snapshot_file is specified.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 blockdev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/blockdev.c b/blockdev.c
index d7add36929..662f7a9d86 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -526,6 +526,12 @@ int do_snapshot_blkdev(Monitor *mon, const QDict *qdict, QObject **ret_data)
     int ret = 0;
     int flags;
 
+    if (!filename) {
+        qerror_report(QERR_MISSING_PARAMETER, "snapshot_file");
+        ret = -1;
+        goto out;
+    }
+
     bs = bdrv_find(device);
     if (!bs) {
         qerror_report(QERR_DEVICE_NOT_FOUND, device);
-- 
2.11.4.GIT