If we need to disconnect signal handlers for the different port
objects managed in the QMI/MBIM modems, we need to do that during
dispose(), as there is no guarantee at all that the port objects will
exist in the MMBaseModem by the time finalize() is run.
ModemManager[4183]: <debug> [1579097652.255333] Modem (Sierra) '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-8/1-8.4' completely disposed
ModemManager[4183]: [/dev/cdc-wdm1] unexpected port hangup!
ModemManager[4183]: [/dev/cdc-wdm1] channel destroyed
ModemManager[4183]: <info> [1579097652.258186] Connection to mbim-proxy for /dev/cdc-wdm1 lost, reprobing
(ModemManager:4183): GLib-GObject-WARNING **: 15:14:12.258: invalid unclassed pointer in cast to 'MMBaseModem'
ModemManager[4183]: mm_base_modem_set_reprobe: assertion 'MM_IS_BASE_MODEM (self)' failed
(ModemManager:4183): GLib-GObject-WARNING **: 15:14:12.258: invalid unclassed pointer in cast to 'MMBaseModem'
ModemManager[4183]: mm_base_modem_set_valid: assertion 'MM_IS_BASE_MODEM (self)' failed
ModemManager[4183]: [/dev/cdc-wdm1] unexpected port hangup!
ModemManager[4183]: [/dev/cdc-wdm1] channel destroyed
ModemManager[4183]: [/dev/cdc-wdm1] MBIM error: Cannot write message: Broken pipe
ModemManager[4183]: [/dev/cdc-wdm1] MBIM error: Cannot write message: Broken pipe
ModemManager[4183]: [/dev/cdc-wdm1] MBIM error: Cannot write message: Broken pipe
ModemManager[4183]: [/dev/cdc-wdm1] MBIM error: Cannot write message: Broken pipe
Aleksander Morgado
00bb228472