[PATCH] psppire-window-base: Avoid memory leak in get_window_id().

[Ben Pfaff]

g_object_get() returns a string copy, so the caller has to free it.

Found by valgrind.
---
Review appreciated.

 src/ui/gui/psppire-window-base.c |   23 +++++++++++++++++------
 1 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/ui/gui/psppire-window-base.c b/src/ui/gui/psppire-window-base.c
index 29c0fd7..328b92e 100644
--- a/src/ui/gui/psppire-window-base.c
+++ b/src/ui/gui/psppire-window-base.c
@@ -42,16 +42,21 @@ G_DEFINE_ABSTRACT_TYPE (PsppireWindowBase, 
psppire_window_base, GTK_TYPE_WINDOW)
 
    If the window has a name, we use that.
    Otherwise we fall back on the class name.
+
+   The caller must free the returned string, with g_free().
  */
-static const char *
+static gchar *
 get_window_id (GtkWidget *wb)
 {
-  const gchar *name = NULL;
-      
+  gchar *name = NULL;
+
   g_object_get (wb, "name", &name, NULL);
 
   if (NULL == name || 0 == strcmp ("", name))
-    name = G_OBJECT_TYPE_NAME (wb);
+    {
+      g_free (name);
+      name = g_strdup (G_OBJECT_TYPE_NAME (wb));
+    }
 
   return name;
 }
@@ -64,8 +69,11 @@ static void
 realize (GtkWidget *wb)
 {
   PsppireConf *conf = psppire_conf_new ();
+  gchar *id;
 
-  psppire_conf_set_window_geometry (conf, get_window_id (wb), GTK_WINDOW (wb));
+  id = get_window_id (wb);
+  psppire_conf_set_window_geometry (conf, id, GTK_WINDOW (wb));
+  g_free (id);
 
   if (GTK_WIDGET_CLASS (psppire_window_base_parent_class)->realize)
     return GTK_WIDGET_CLASS (psppire_window_base_parent_class)->realize (wb) ;
@@ -81,8 +89,11 @@ configure_event (GtkWidget *wb, GdkEventConfigure *event)
   if (gtk_widget_get_mapped (wb))
     {
       PsppireConf *conf = psppire_conf_new ();
+      gchar *id;
 
-      psppire_conf_save_window_geometry (conf, get_window_id (wb), GTK_WINDOW 
(wb));
+      id = get_window_id (wb);
+      psppire_conf_save_window_geometry (conf, id, GTK_WINDOW (wb));
+      g_free (id);
     }
 
   if (GTK_WIDGET_CLASS (psppire_window_base_parent_class)->configure_event)
-- 
1.7.2.5