tree 0242ae04e411c660a2dd92ec217e7abf8bbc3f13
parent d2f8d7ee1a9b4650b4e43325b321801264f7c37a
author Clemens Ladisch <clemens@ladisch.de> 1234794159 +0100
committer Takashi Iwai <tiwai@suse.de> 1234794708 +0100

sound: usb-audio: fix uninitialized variable with M-Audio MIDI interfaces

Fix the snd_usbmidi_create_endpoints_midiman() function, which forgot to
set the out_interval member of the endpoint info structure for Midiman/
M-Audio devices.  Since kernel 2.6.24, any non-zero value makes the
driver use interrupt transfers instead of bulk transfers.  With EHCI
controllers, these random interval values result in unbearably large
latencies for output MIDI transfers.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-by: David <devurandom@foobox.com>
Tested-by: David <devurandom@foobox.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>