[anjal] Fix some critical warnings.

[Srinivasa Ragavan <sragavan src gnome org>]

commit 802f5a2cbc90e89acb8c8303a3e50d18d77546ad
Author: Srinivasa Ragavan <sragavan novell com>
Date:   Wed Aug 26 00:31:48 2009 +0530

    Fix some critical warnings.

 src/mail-conv-view.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/mail-conv-view.c b/src/mail-conv-view.c
index c686efa..a592e31 100644
--- a/src/mail-conv-view.c
+++ b/src/mail-conv-view.c
@@ -393,7 +393,7 @@ mail_conv_view_set_thread (MailConvView *mcv, CamelFolder *folder, const char *u
 	gtk_container_add ((GtkContainer *)mcv->priv->viewport, mcv->child_box);
 	mcv->priv->position = 0;
 	mcv->priv->load_chain = g_malloc0(sizeof (gpointer) * (array->len+1));
-	if (array->len) {
+	if (array->len && mcv->priv->tab_label) {
 		CamelMessageInfo *mi = camel_folder_summary_uid (folder->summary, array->pdata[0]);
 		gtk_label_set_text ((GtkLabel *)mcv->priv->tab_label, camel_message_info_subject(mi));
 		gtk_label_set_max_width_chars ((GtkLabel *)mcv->priv->tab_label, 15);