bearer: check if signal handler is connected before trying to disconnect it

Avoids warnings like:
GLib-GObject-WARNING **: gsignal.c:2576: instance `0x78624028' has no handler with id `148'

1 files changed, 6 insertions, 3 deletions

diff --git a/src/mm-bearer.c b/src/mm-bearer.c
index d426c72a..5aa713e2 100644
--- a/src/mm-bearer.c
+++ b/src/mm-bearer.c
@@ -320,15 +320,18 @@ reset_signal_handlers (MMBearer *self)
         return;
 
     if (self->priv->id_3gpp_registration_change) {
-        g_signal_handler_disconnect (self->priv->modem, self->priv->id_3gpp_registration_change);
+        if (g_signal_handler_is_connected (self->priv->modem, self->priv->id_3gpp_registration_change))
+            g_signal_handler_disconnect (self->priv->modem, self->priv->id_3gpp_registration_change);
         self->priv->id_3gpp_registration_change = 0;
     }
     if (self->priv->id_cdma1x_registration_change) {
-        g_signal_handler_disconnect (self->priv->modem, self->priv->id_cdma1x_registration_change);
+        if (g_signal_handler_is_connected (self->priv->modem, self->priv->id_cdma1x_registration_change))
+            g_signal_handler_disconnect (self->priv->modem, self->priv->id_cdma1x_registration_change);
         self->priv->id_cdma1x_registration_change = 0;
     }
     if (self->priv->id_evdo_registration_change) {
-        g_signal_handler_disconnect (self->priv->modem, self->priv->id_evdo_registration_change);
+        if (g_signal_handler_is_connected (self->priv->modem, self->priv->id_evdo_registration_change))
+            g_signal_handler_disconnect (self->priv->modem, self->priv->id_evdo_registration_change);
         self->priv->id_evdo_registration_change = 0;
     }
 }