[gnome-bluetooth] Don't try to get a pincode when there's no device selected

[Bastien Nocera <hadess src gnome org>]

commit 41c88f5b949fc8086b65250b59403fe2d9951bb9
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Jun 25 13:52:15 2009 +0100

    Don't try to get a pincode when there's no device selected
    
    When we lose the devices, the selection goes to NULL, thus,
    we can't have a pin for it.

 wizard/main.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/wizard/main.c b/wizard/main.c
index 849a28f..44cbddf 100644
--- a/wizard/main.c
+++ b/wizard/main.c
@@ -777,7 +777,7 @@ select_device_changed (BluetoothChooser *selector,
 	if (user_pincode != NULL && *user_pincode != '\0') {
 		pincode = g_strdup (user_pincode);
 		automatic_pincode = TRUE;
-	} else {
+	} else if (address != NULL) {
 		guint max_digits;
 
 		pincode = get_pincode_for_device(target_type, target_address, target_name, &max_digits);