From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 3 Aug 2012 10:51:21 +0000 (+0200)
Subject: ALSA: emu10k1: Avoid access to invalid pages when period=1
X-Git-Tag: v3.6-rc2~27^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fcfb7866af9a5d0280b7e51dd772990c636b7dec;p=pandora-kernel.git

ALSA: emu10k1: Avoid access to invalid pages when period=1

When period=1, the driver tries to allocate a bit bigger buffer than
requested by the user due to the irq latency tolerance.  This may lead
to accesses over the actually allocated pages.

This patch adds a check of the page index and assigns the silent page
when it's over the given buffer size.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
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