[Bugfix] FS#13492 - Playback resume fails after USB insert

On usb plug system_flush() gets called before the other
threads get a chance to ACK the insert

system_flush() calls playlist_shutdown() (amongst other things)
playlist_shutdown closes the control file

the audio thread acks USB insert
audio_stop_playback is called which now can't look up the
filename from the now closed handle for control the control file

I left the guard for checking for USB insert but it appears to be
fine without it

Change-Id: I935dbf7aed38d4a57413c0063ad953f427e9b3bb

1 files changed, 5 insertions, 1 deletions

diff --git a/apps/playlist.c b/apps/playlist.c
index d23f3ec0d1..af5e1b5df0 100644
--- a/apps/playlist.c
+++ b/apps/playlist.c
@@ -1949,10 +1949,14 @@ void playlist_init(void)
  * Clean playlist at shutdown
  */
 void playlist_shutdown(void)
+
 {
+    /*BugFix we need to save resume info first */
+    /*if (usb_detect() == USB_INSERTED)*/
+    audio_stop();
     struct playlist_info* playlist = &current_playlist;
     playlist_write_lock(playlist);
-
+    logf("Closing Control %s", __func__);
     if (playlist->control_fd >= 0)
         pl_close_control(playlist);