From: Dan Carpenter <error27@gmail.com>
Date: Tue, 6 Apr 2010 16:31:26 +0000 (+0300)
Subject: ALSA: mixart: range checking proc file
X-Git-Tag: v2.6.27.47~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a63de3a1462918dcba19f19ba0304284654a193;p=pandora-kernel.git

ALSA: mixart: range checking proc file

commit b0cc58a25d04160d39a80e436847eaa2fbc5aa09 upstream.

The original code doesn't take into consideration that the value of
MIXART_BA0_SIZE - pos can be less than zero which would lead to a large
unsigned value for "count".

Also I moved the check that read size is a multiple of 4 bytes below
the code that adjusts "count".

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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