[gnome-disk-utility] Don't leak when sorting

[David Zeuthen <davidz src gnome org>]

commit 5546aee171f37d690687d513d10065fa21877e2f
Author: David Zeuthen <zeuthen gmail com>
Date:   Wed Nov 21 12:17:33 2012 -0500

    Don't leak when sorting
    
    Signed-off-by: David Zeuthen <zeuthen gmail com>

 src/disks/gduwindow.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/disks/gduwindow.c b/src/disks/gduwindow.c
index f5171e4..0c13f11 100644
--- a/src/disks/gduwindow.c
+++ b/src/disks/gduwindow.c
@@ -1114,6 +1114,7 @@ device_sort_function (GtkTreeModel *model,
                       gpointer user_data)
 {
   gchar *sa, *sb;
+  gint ret;
 
   gtk_tree_model_get (model, a,
                       GDU_DEVICE_TREE_MODEL_COLUMN_SORT_KEY, &sa,
@@ -1121,8 +1122,10 @@ device_sort_function (GtkTreeModel *model,
   gtk_tree_model_get (model, b,
                       GDU_DEVICE_TREE_MODEL_COLUMN_SORT_KEY, &sb,
                       -1);
-
-  return g_strcmp0 (sa, sb);
+  ret = g_strcmp0 (sa, sb);
+  g_free (sa);
+  g_free (sb);
+  return ret;
 }
 
 static void