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diff -aurp a/wpa_supplicant/dbus/dbus_new_helpers.c b/wpa_supplicant/dbus/dbus_new_helpers.c
--- a/wpa_supplicant/dbus/dbus_new_helpers.c 2012-05-15 07:28:37.616150164 +0000
+++ b/wpa_supplicant/dbus/dbus_new_helpers.c 2012-05-15 07:30:21.904157611 +0000
@@ -882,7 +882,7 @@ void wpa_dbus_mark_property_changed(stru
const struct wpa_dbus_property_desc *dsc;
int i = 0;
- if (iface == NULL)
+ if (iface == NULL || path == NULL)
return;
dbus_connection_get_object_path_data(iface->con, path,
diff -aurp a/wpa_supplicant/dbus/dbus_old.c b/wpa_supplicant/dbus/dbus_old.c
--- a/wpa_supplicant/dbus/dbus_old.c 2012-05-15 07:28:29.502149373 +0000
+++ b/wpa_supplicant/dbus/dbus_old.c 2012-05-15 07:30:48.859162441 +0000
@@ -379,7 +379,7 @@ void wpa_supplicant_dbus_notify_scan_res
DBusMessage *_signal;
/* Do nothing if the control interface is not turned on */
- if (iface == NULL)
+ if (iface == NULL || wpa_s->dbus_path == NULL)
return;
_signal = dbus_message_new_signal(wpa_s->dbus_path,
@@ -419,7 +419,7 @@ void wpa_supplicant_dbus_notify_state_ch
if (wpa_s->global == NULL)
return;
iface = wpa_s->global->dbus;
- if (iface == NULL)
+ if (iface == NULL || wpa_s->dbus_path == NULL)
return;
/* Only send signal if state really changed */
@@ -478,7 +478,7 @@ void wpa_supplicant_dbus_notify_scanning
dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
/* Do nothing if the control interface is not turned on */
- if (iface == NULL)
+ if (iface == NULL || wpa_s->dbus_path == NULL)
return;
_signal = dbus_message_new_signal(wpa_s->dbus_path,
@@ -513,7 +513,7 @@ void wpa_supplicant_dbus_notify_wps_cred
if (wpa_s->global == NULL)
return;
iface = wpa_s->global->dbus;
- if (iface == NULL)
+ if (iface == NULL || wpa_s->dbus_path == NULL)
return;
_signal = dbus_message_new_signal(wpa_s->dbus_path,
@@ -564,7 +564,7 @@ void wpa_supplicant_dbus_notify_certific
if (wpa_s->global == NULL)
return;
iface = wpa_s->global->dbus;
- if (iface == NULL)
+ if (iface == NULL || wpa_s->dbus_path == NULL)
return;
_signal = dbus_message_new_signal(wpa_s->dbus_path,
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