[gvfs/gnome-3-28] udisks2: Fix crashes caused by missing source tag

[Ondrej Holy <oholy src gnome org>]

commit 8d428ef4592499ccf4a235dbc750b63fbc9dfa52
Author: Ondrej Holy <oholy redhat com>
Date:   Sat May 26 08:16:02 2018 +0200

    udisks2: Fix crashes caused by missing source tag
    
    GAsyncReadyCallback is never called from g_drive_stop, because
    source_tag is not set, but checked. This obviously causes issues
    for client applications. Add missing source_tag.
    
    Closes: https://gitlab.gnome.org/GNOME/gvfs/issues/1

 monitor/udisks2/gvfsudisks2drive.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/monitor/udisks2/gvfsudisks2drive.c b/monitor/udisks2/gvfsudisks2drive.c
index de6840f6..fcceefde 100644
--- a/monitor/udisks2/gvfsudisks2drive.c
+++ b/monitor/udisks2/gvfsudisks2drive.c
@@ -915,6 +915,7 @@ gvfs_udisks2_drive_stop (GDrive              *_drive,
   GTask *task;
 
   task = g_task_new (drive, cancellable, callback, user_data);
+  g_task_set_source_tag (task, gvfs_udisks2_drive_stop);
 
   /* This information is needed in GVfsDdisks2Volume when apps have
    * open files on the device ... we need to know if the button should