[anjal] Fix a crit warning.

[Srinivasa Ragavan <sragavan src gnome org>]

commit b7937ed85a68d58f40f75cf2fbc327417e8f3236
Author: Srinivasa Ragavan <sragavan novell com>
Date:   Fri Jul 24 00:21:07 2009 +0530

    Fix a crit warning.

 src/mail-message-view.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/mail-message-view.c b/src/mail-message-view.c
index e0063bb..5511757 100644
--- a/src/mail-message-view.c
+++ b/src/mail-message-view.c
@@ -410,7 +410,8 @@ discard_composer_cb (GtkWidget *w, MailMessageView *mmv)
 {
 	gtk_widget_hide (mmv->frame);
 	gtk_widget_hide (mmv->cbox);
-	gtk_widget_hide (mmv->comp_view);
+	if (mmv->comp_view)
+		gtk_widget_hide (mmv->comp_view);
 	gtk_widget_hide (mmv->discard);
 	gtk_widget_hide (mmv->pop_out);
 	mmv->composer = NULL;