qemu 提交patch

git add xxx.c
git commit -s 然后填好标题注释吧
git format-patch --stdout -1 > patch  
./script/checkpatch.pl patch
然后把patch的内容黏贴到邮件中就可以了。 需要抄送的人可以使用./scripts/get_maintainer.pl patch来找出

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_zhang@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, &bs, &err) < 0) {
-- 
2.11.0