[network-manager-applet] applet: fix possible crash when gtk_entry_get_text() returns NULL

[JiÅÃ KlimeÅ <jklimes src gnome org>]

commit ed9a8b34dabd7a7712fa39996adb4a5734afa6f4
Author: JiÅÃ KlimeÅ <jklimes redhat com>
Date:   Wed Jun 15 12:39:29 2011 +0200

    applet: fix possible crash when gtk_entry_get_text() returns NULL

 src/wireless-dialog.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/wireless-dialog.c b/src/wireless-dialog.c
index 5788b44..2e3c967 100644
--- a/src/wireless-dialog.c
+++ b/src/wireless-dialog.c
@@ -252,9 +252,8 @@ validate_dialog_ssid (NMAWirelessDialog *self)
 	widget = GTK_WIDGET (gtk_builder_get_object (priv->builder, "network_name_entry"));
 
 	ssid = gtk_entry_get_text (GTK_ENTRY (widget));
-	ssid_len = strlen (ssid);
 	
-	if (!ssid || !ssid_len || (ssid_len > 32))
+	if (!ssid || strlen (ssid) == 0 || strlen (ssid) > 32)
 		return NULL;
 
 	ssid_len = strlen (ssid);