[clutter] input-device: Guard against double free

[Florian Müllner <fmuellner src gnome org>]

commit f6ad53d9e0b5d64ba4a476d29b81edcbb718f05c
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Nov 29 15:43:45 2013 +0000

    input-device: Guard against double free
    
    Dispose() may be called more than once, so calling g_free directly
    on the device name is unsafe. Instead, use g_clear_pointer() to
    make sure we don't attempt to free the memory again.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=719563

 clutter/clutter-input-device.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/clutter/clutter-input-device.c b/clutter/clutter-input-device.c
index 4a29742..d77677d 100644
--- a/clutter/clutter-input-device.c
+++ b/clutter/clutter-input-device.c
@@ -79,7 +79,7 @@ clutter_input_device_dispose (GObject *gobject)
 {
   ClutterInputDevice *device = CLUTTER_INPUT_DEVICE (gobject);
 
-  g_free (device->device_name);
+  g_clear_pointer (&device->device_name, g_free);
 
   if (device->associated != NULL)
     {