[gnome-commander] tabs: do not call GnomeCmdFileSelector::update_vol_label() for empty tab

[Piotr Eljasiak <epiotr src gnome org>]

commit 38cfbdf442cf5d627338845ae350ecff68d45a67
Author: Piotr Eljasiak <epiotr src gnome org>
Date:   Sun Jun 20 14:28:26 2010 +0200

    tabs: do not call GnomeCmdFileSelector::update_vol_label() for empty tab

 src/gnome-cmd-file-selector.cc |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/src/gnome-cmd-file-selector.cc b/src/gnome-cmd-file-selector.cc
index 608dda9..c62b452 100644
--- a/src/gnome-cmd-file-selector.cc
+++ b/src/gnome-cmd-file-selector.cc
@@ -226,9 +226,14 @@ inline void GnomeCmdFileSelector::update_direntry()
 
 inline void GnomeCmdFileSelector::update_vol_label()
 {
-    g_return_if_fail (GNOME_CMD_IS_CON (get_connection()));
+    GnomeCmdCon *con = get_connection();
 
-    gchar *s = gnome_cmd_con_get_free_space (get_connection(), get_directory(), _("%s free"));
+    if (!con)
+        return;
+
+    g_return_if_fail (GNOME_CMD_IS_CON (con));
+
+    gchar *s = gnome_cmd_con_get_free_space (con, get_directory(), _("%s free"));
     gtk_label_set_text (GTK_LABEL (vol_label), s ? s : "");
     g_free (s);
 }