[gvfs] sftp: Do not call force unmount twice

[Ondrej Holy <oholy src gnome org>]

commit df8a5dfaf0abcb915b5fe054ccf52180cbcba275
Author: Ondrej Holy <oholy redhat com>
Date:   Wed Jan 4 10:33:23 2017 +0100

    sftp: Do not call force unmount twice
    
    g_vfs_backend_force_unmount() might be called twice if command sending
    fails. Use fail_jobs_and_unmount wrapper instead of calling _force_unmount()
    directly.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=776824

 daemon/gvfsbackendsftp.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/daemon/gvfsbackendsftp.c b/daemon/gvfsbackendsftp.c
index 7c2eb12..45c0009 100644
--- a/daemon/gvfsbackendsftp.c
+++ b/daemon/gvfsbackendsftp.c
@@ -1514,7 +1514,7 @@ send_command_data (GObject *source_object,
   if (res <= 0)
     {
       g_warning ("Error sending command");
-      g_vfs_backend_force_unmount ((GVfsBackend*)conn->op_backend);
+      fail_jobs_and_unmount (conn->op_backend, NULL);
       return;
     }