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

[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 <address@hidden>
---
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, &bs, &err) < 0) {
--
2.11.0