Commit 7a17daae authored Oct 02, 2008 by Takashi Iwai Committed by Jaroslav Kysela Oct 10, 2008

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 <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

parent 669faba2

sound/usb/usbmidi.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}

Admin message