[Qemu-devel] [PATCH] HMP: Initialize err before using

2018-03-06 Thread Zhangjixiang
When bdrv_snapshot_delete return fail, the errp will not be
assigned a valid value in error_propagate as errp didn't be
initialized in hmp_delvm, then error_reportf_err will use an
uninitialized value(call by hmp_delvm), and qemu crash.

Signed-off-by: zhangjixiang <jixiang_zh...@h3c.com>
---
hmp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hmp.c b/hmp.c
index 7870d6a300..4a4da004e9 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1340,7 +1340,7 @@ void hmp_savevm(Monitor *mon, const QDict *qdict)
void hmp_delvm(Monitor *mon, const QDict *qdict)
{
 BlockDriverState *bs;
-Error *err;
+Error *err = NULL;
 const char *name = qdict_get_str(qdict, "name");
 if (bdrv_all_delete_snapshot(name, , ) < 0) {
--
2.11.0


[Qemu-devel] [PATCH] HMP: Initialize err before using

2018-02-24 Thread Zhangjixiang
From 295640e6f4aa83b843e245bb1af9995be37de84d Mon Sep 17 00:00:00 2001
From: zhangjixiang <jixiang_zh...@h3c.com>
Date: Sun, 25 Feb 2018 09:47:51 +0800
Subject: [PATCH] HMP: Initialize err before using

When bdrv_snapshot_delete return fail, the errp will not be
assigned a valid value in error_propagate as errp didn't be
initialized in hmp_delvm, then error_reportf_err will use an
uninitialized value(call by hmp_delvm), and qemu crash.

Signed-off-by: zhangjixiang <jixiang_zh...@h3c.com>
---
hmp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hmp.c b/hmp.c
index 7870d6a300..4a4da004e9 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1340,7 +1340,7 @@ void hmp_savevm(Monitor *mon, const QDict *qdict)
void hmp_delvm(Monitor *mon, const QDict *qdict)
{
 BlockDriverState *bs;
-Error *err;
+Error *err = NULL;
 const char *name = qdict_get_str(qdict, "name");
 if (bdrv_all_delete_snapshot(name, , ) < 0) {
--
2.11.0
-
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