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[Qemu-devel] [PATCH] do_snapshot_blkdev() error on missing snapshot_file


From: Jes . Sorensen
Subject: [Qemu-devel] [PATCH] do_snapshot_blkdev() error on missing snapshot_file argument
Date: Thu, 6 Jan 2011 17:02:23 +0100

From: Jes Sorensen <address@hidden>

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

Signed-off-by: Jes Sorensen <address@hidden>
---
 blockdev.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/blockdev.c b/blockdev.c
index d7add36..662f7a9 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);
-- 
1.7.3.4




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