From: Michael Roth <mdroth@linux.vnet.ibm.com>
Date: Sun, 7 Oct 2018 11:02:22 +0000 (+0300)
Subject: qga-win: report specific error when failing to open channel
X-Git-Tag: qemu-xen-4.13.0-rc1~586^2~1
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=a2c1ac4e22da848e0fef262086e0f29fbc6ff83a;p=qemu-xen.git

qga-win: report specific error when failing to open channel

Useful in general, but especially now that errors might occur more
frequently with --retry-path set.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---

diff --git a/qga/channel-win32.c b/qga/channel-win32.c
index b3597a8a0f..c86f4388db 100644
--- a/qga/channel-win32.c
+++ b/qga/channel-win32.c
@@ -302,7 +302,8 @@ static gboolean ga_channel_open(GAChannel *c, GAChannelMethod method,
                            OPEN_EXISTING,
                            FILE_FLAG_NO_BUFFERING | FILE_FLAG_OVERLAPPED, NULL);
     if (c->handle == INVALID_HANDLE_VALUE) {
-        g_critical("error opening path %s", newpath);
+        g_critical("error opening path %s: %s", newpath,
+                   g_win32_error_message(GetLastError()));
         return false;
     }