[gvfs] client: Propagate error from create_mount_tracker_proxy

[Ondrej Holy <oholy src gnome org>]

commit 6a62f4a28cc1457f489329ec115828d48db6c511
Author: Ondrej Holy <oholy redhat com>
Date:   Wed Jan 25 15:14:52 2017 +0100

    client: Propagate error from create_mount_tracker_proxy
    
    Prevent GDaemonFile methods failures without error being set.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777737

 client/gdaemonvfs.c |   19 ++++++++++---------
 1 files changed, 10 insertions(+), 9 deletions(-)
---
diff --git a/client/gdaemonvfs.c b/client/gdaemonvfs.c
index 0cf11e6..632538a 100644
--- a/client/gdaemonvfs.c
+++ b/client/gdaemonvfs.c
@@ -41,6 +41,7 @@
 #include <glib/gstdio.h>
 #include <gvfsdbus.h>
 #include "gvfsutils.h"
+#include "gvfsdaemondbus.h"
 
 typedef struct  {
   char *type;
@@ -562,23 +563,23 @@ find_string (GPtrArray *array, const char *find_me)
 }
 
 static GVfsDBusMountTracker *
-create_mount_tracker_proxy ()
+create_mount_tracker_proxy (GError **error)
 {
   GVfsDBusMountTracker *proxy;
-  GError *error;
+  GError *local_error;
 
-  error = NULL;
+  local_error = NULL;
   proxy = gvfs_dbus_mount_tracker_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
                                                           G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS | 
G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
                                                           G_VFS_DBUS_DAEMON_NAME,
                                                           G_VFS_DBUS_MOUNTTRACKER_PATH,
                                                           NULL,
-                                                          &error);
+                                                          &local_error);
   if (proxy == NULL)
     {
       g_warning ("Error creating proxy: %s (%s, %d)\n",
-                  error->message, g_quark_to_string (error->domain), error->code);
-      g_error_free (error);
+                  local_error->message, g_quark_to_string (local_error->domain), local_error->code);
+      _g_propagate_error_stripped (error, local_error);
     }
   
   return proxy;
@@ -599,7 +600,7 @@ fill_mountable_info (GDaemonVfs *vfs)
   gint32 default_port;
   gboolean host_is_inet;
   
-  proxy = create_mount_tracker_proxy ();
+  proxy = create_mount_tracker_proxy (NULL);
   if (proxy == NULL)
     return;
 
@@ -948,7 +949,7 @@ _g_daemon_vfs_get_mount_info_sync (GMountSpec *spec,
   if (info != NULL)
     return info;
   
-  proxy = create_mount_tracker_proxy ();
+  proxy = create_mount_tracker_proxy (error);
   if (proxy == NULL)
     return NULL;
   
@@ -980,7 +981,7 @@ _g_daemon_vfs_get_mount_info_by_fuse_sync (const char *fuse_path,
   info = lookup_mount_info_by_fuse_path_in_cache (fuse_path);
   if (!info)
     {
-      proxy = create_mount_tracker_proxy ();
+      proxy = create_mount_tracker_proxy (NULL);
       if (proxy == NULL)
         return NULL;