[evolution] Bug #596967 - Fix little constraint mistake from previous commit

[Milan Crha <mcrha src gnome org>]

commit 35fec013258605bba2499514a4e5336a9649611f
Author: Milan Crha <mcrha redhat com>
Date:   Mon Dec 21 11:58:48 2009 +0100

    Bug #596967 - Fix little constraint mistake from previous commit

 e-util/gconf-bridge.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/e-util/gconf-bridge.c b/e-util/gconf-bridge.c
index 03f82f4..8405c68 100644
--- a/e-util/gconf-bridge.c
+++ b/e-util/gconf-bridge.c
@@ -555,9 +555,8 @@ prop_binding_block_cb (gpointer hkey, PropBinding *binding, const gchar *key)
 {
 	g_return_if_fail (binding != NULL);
 	g_return_if_fail (key != NULL);
-	g_return_if_fail (binding->key != NULL);
 
-	if (binding->type == BINDING_PROP && g_ascii_strcasecmp (binding->key, key) == 0)
+	if (binding->type == BINDING_PROP && binding->key && g_ascii_strcasecmp (binding->key, key) == 0)
 		g_signal_handler_block (binding->object, binding->prop_notify_id);
 }
 
@@ -566,9 +565,8 @@ prop_binding_unblock_cb (gpointer hkey, PropBinding *binding, const gchar *key)
 {
 	g_return_if_fail (binding != NULL);
 	g_return_if_fail (key != NULL);
-	g_return_if_fail (binding->key != NULL);
 
-	if (binding->type == BINDING_PROP && g_ascii_strcasecmp (binding->key, key) == 0)
+	if (binding->type == BINDING_PROP && binding->key && g_ascii_strcasecmp (binding->key, key) == 0)
 		g_signal_handler_unblock (binding->object, binding->prop_notify_id);
 }