[gedit] Make sure to check icon exists before unreffing it

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 17b9e50b4bdab38992a647fdd773705fdb2f72b8
Author: Jesse van den Kieboom <jesse icecrew nl>
Date:   Tue Oct 5 19:07:33 2010 +0200

    Make sure to check icon exists before unreffing it

 plugins/filebrowser/gedit-file-browser-widget.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/plugins/filebrowser/gedit-file-browser-widget.c b/plugins/filebrowser/gedit-file-browser-widget.c
index 9fe9692..f6dda90 100644
--- a/plugins/filebrowser/gedit-file-browser-widget.c
+++ b/plugins/filebrowser/gedit-file-browser-widget.c
@@ -742,7 +742,11 @@ fill_combo_model (GeditFileBrowserWidget *obj)
 			    COLUMN_ICON, icon,
 			    COLUMN_NAME, _("Bookmarks"),
 			    COLUMN_ID, BOOKMARKS_ID, -1);
-	g_object_unref (icon);
+
+	if (icon != NULL)
+	{
+		g_object_unref (icon);
+	}
 
 	gtk_combo_box_set_row_separator_func (GTK_COMBO_BOX (obj->priv->combo),
 					      separator_func, obj, NULL);