From 7a17daae8ed71bf3259d905a4fc48a5b424fa935 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 2 Oct 2008 14:50:22 +0200 Subject: [PATCH] ALSA: usb - Fix possible Oops at USB-MIDI disconnection The endpoints should be released immediately at disconnection rather than the delayed release. This could be a reason of Oops at USB-audio device disconnection being used. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/usb/usbmidi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index c0c7770198a..5962e4b8442 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -1112,6 +1112,15 @@ void snd_usbmidi_disconnect(struct list_head* p) } if (ep->in) usb_kill_urb(ep->in->urb); + /* free endpoints here; later call can result in Oops */ + if (ep->out) { + snd_usbmidi_out_endpoint_delete(ep->out); + ep->out = NULL; + } + if (ep->in) { + snd_usbmidi_in_endpoint_delete(ep->in); + ep->in = NULL; + } } del_timer_sync(&umidi->error_timer); } -- 2.41.1