ALSA: line6: Use correct endpoint type for midi output
authorFabián Inostroza <soulsonceonfire@gmail.com>
Thu, 12 Apr 2018 03:37:35 +0000 (00:37 -0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 24 Apr 2018 07:36:36 +0000 (09:36 +0200)
commit43b3e7915edd6c20be27444bd70d967fcb07394d
tree1c02f9e3e6a8f9bb44b2f0725711290288cbfe6c
parentbdc6f4c3db08c7b947b5c4200e600136993fe01b
ALSA: line6: Use correct endpoint type for midi output

commit 7ecb46e9ee9af18e304eb9e7d6804c59a408e846 upstream.

Sending MIDI messages to a PODxt through the USB connection shows
"usb_submit_urb failed" in dmesg and the message is not received by
the POD.

The error is caused because in the funcion send_midi_async() in midi.c
there is a call to usb_sndbulkpipe() for endpoint 3 OUT, but the PODxt
USB descriptor shows that this endpoint it's an interrupt endpoint.

Patch tested with PODxt only.

[ The bug has been present from the very beginning in the staging
  driver time, but Fixes below points to the commit moving to sound/
  directory so that the fix can be cleanly applied -- tiwai ]

Fixes: 61864d844c29 ("ALSA: move line6 usb driver into sound/usb")
Signed-off-by: Fabián Inostroza <fabianinostroza@udec.cl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
sound/usb/line6/midi.c