gsm: ensure cleanup commands are sent when disabling

If there's no modem-specific power-down command, the port would be
closed prematurely, perhaps leaving unsolicited messages enabled.
Make sure that doesn't happen by ensuring that cleanup commands
complete.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/mm-generic-gsm.c b/src/mm-generic-gsm.c
index 4ed81241..293b2ec4 100644
--- a/src/mm-generic-gsm.c
+++ b/src/mm-generic-gsm.c
@@ -2099,8 +2099,10 @@ disable_flash_done (MMSerialPort *port,
     g_object_get (G_OBJECT (info->modem), MM_GENERIC_GSM_POWER_DOWN_CMD, &cmd, NULL);
     if (cmd && strlen (cmd))
         mm_at_serial_port_queue_command (MM_AT_SERIAL_PORT (port), cmd, 5, disable_done, user_data);
-    else
-        disable_done (MM_AT_SERIAL_PORT (port), NULL, NULL, user_data);
+    else {
+        /* Send a plain AT to ensure the previous commands complete */
+        mm_at_serial_port_queue_command (MM_AT_SERIAL_PORT (port), "AT", 3, disable_done, user_data);
+    }
     g_free (cmd);
 }