From: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Date: Tue, 6 Aug 2013 11:53:24 +0000 (+0300)
Subject: ALSA: 6fire: fix DMA issues with URB transfer_buffer usage
X-Git-Tag: v3.2.51~64
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f440a7abb7c4b81192be3e192af8feec8e02ff3;p=pandora-kernel.git

ALSA: 6fire: fix DMA issues with URB transfer_buffer usage

commit ddb6b5a964371e8e52e696b2b258bda144c8bd3f upstream.

Patch fixes 6fire not to use stack as URB transfer_buffer. URB buffers need to
be DMA-able, which stack is not. Furthermore, transfer_buffer should not be
allocated as part of larger device structure because DMA coherency issues and
patch fixes this issue too.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Tested-by: Torsten Schenk <torsten.schenk@zoho.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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