[balsa] Check for NULL message

[Peter Bloomfield <PeterB src gnome org>]

commit 55b19bd982ba96978ae9420148be631b15994e52
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Thu Jul 9 19:56:56 2009 -0400

    Check for NULL message

 ChangeLog            |    4 ++++
 src/message-window.c |    2 +-
 2 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 8d2e032..faed616 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2009-07-09  Peter Bloomfield
 
+	* src/message-window.c (mw_expunged_cb): check for NULL message.
+
+2009-07-09  Peter Bloomfield
+
 	* libbalsa/mailbox_mbox.c (libbalsa_mailbox_mbox_sync): check
 	for error in GMimeParser.
 
diff --git a/src/message-window.c b/src/message-window.c
index 944e0fa..58615dd 100644
--- a/src/message-window.c
+++ b/src/message-window.c
@@ -667,7 +667,7 @@ destroy_message_window(GtkWidget * widget, MessageWindow * mw)
 static void
 mw_expunged_cb(LibBalsaMailbox * mailbox, guint msgno, MessageWindow * mw)
 {
-    if ((guint) mw->message->msgno == msgno)
+    if (mw->message && (guint) mw->message->msgno == msgno)
         gtk_widget_destroy(mw->window);
 }