From a2c1ac4e22da848e0fef262086e0f29fbc6ff83a Mon Sep 17 00:00:00 2001
From: Michael Roth <mdroth@linux.vnet.ibm.com>
Date: Sun, 7 Oct 2018 14:02:22 +0300
Subject: [PATCH] qga-win: report specific error when failing to open channel
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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>
---
 qga/channel-win32.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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;
     }
 
-- 
2.11.0