From b9212c3d72363f67d621dd4e16e507e4a677158e Mon Sep 17 00:00:00 2001
From: qihao <qihao_yewu@cmss.chinamobile.com>
Date: Tue, 27 Jun 2023 22:45:24 +0800
Subject: [PATCH] qga/vss-win32: fix warning for clang++-15
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cheery-pick from a3f531cee66b12041098f7a809c2a7d6ecb6ad7d

Reported when compiling with clang-windows-arm64.

../qga/vss-win32/install.cpp:537:9: error: variable 'hr' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
    if (!(ControlService(service, SERVICE_CONTROL_STOP, NULL))) {
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../qga/vss-win32/install.cpp:545:12: note: uninitialized use occurs here
    return hr;
           ^~

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Fixes: 917ebcb170 ("qga-win: Fix QGA VSS Provider service stop failure")
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Kostiantyn Kostiuk <kostyanf14@live.com>
(cherry picked from commit 0fcd574b025fccdf14d5140687cafe2bc30b634f)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: qihao_yewu <qihao_yewu@cmss.chinamobile.com>
---
 qga/vss-win32/install.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qga/vss-win32/install.cpp b/qga/vss-win32/install.cpp
index 40de133774..e90a03c1cf 100644
--- a/qga/vss-win32/install.cpp
+++ b/qga/vss-win32/install.cpp
@@ -513,7 +513,7 @@ namespace _com_util
 /* Stop QGA VSS provider service using Winsvc API  */
 STDAPI StopService(void)
 {
-    HRESULT hr;
+    HRESULT hr = S_OK;
     SC_HANDLE manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
     SC_HANDLE service = NULL;
 
-- 
2.41.0.windows.1