Commit 7a17daae authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
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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: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav 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);

}