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[Qemu-devel] [PATCH v2 4/4] qga-win: Handle VSS_E_PROVIDER_ALREADY_REGIS
From: |
Basil Salman |
Subject: |
[Qemu-devel] [PATCH v2 4/4] qga-win: Handle VSS_E_PROVIDER_ALREADY_REGISTERED error |
Date: |
Sun, 13 Jan 2019 12:05:31 +0200 |
From: Sameeh Jubran <address@hidden>
This patch handles the case where VSS Provider is already registered,
where in such case qga uninstalls the provider and registers it again.
Signed-off-by: Sameeh Jubran <address@hidden>
Signed-off-by: Basil Salman <address@hidden>
---
qga/vss-win32/install.cpp | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/qga/vss-win32/install.cpp b/qga/vss-win32/install.cpp
index 6713e58670..a456841360 100644
--- a/qga/vss-win32/install.cpp
+++ b/qga/vss-win32/install.cpp
@@ -443,6 +443,17 @@ STDAPI DllRegisterServer(void)
VSS_PROV_SOFTWARE,
const_cast<WCHAR*>(QGA_PROVIDER_VERSION),
g_gProviderVersion);
+ if (hr == (long int) VSS_E_PROVIDER_ALREADY_REGISTERED) {
+ DllUnregisterServer();
+ hr = pVssAdmin->RegisterProvider(g_gProviderId, CLSID_QGAVSSProvider,
+ const_cast<WCHAR * >
+ (QGA_PROVIDER_LNAME),
+ VSS_PROV_SOFTWARE,
+ const_cast<WCHAR * >
+ (QGA_PROVIDER_VERSION),
+ g_gProviderVersion);
+ }
+
if (FAILED(hr)) {
errmsg_dialog(hr, "RegisterProvider failed");
}
--
2.17.2