From: Michal Kazior <michal.kazior@tieto.com>
Date: Mon, 14 Jul 2014 13:25:25 +0000 (+0300)
Subject: ath10k: sanitize tx ring index access properly
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~149^2~73^2~41^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=993619443774f7ef4df3b98655df4c3bf298548c;p=pandora-kernel.git

ath10k: sanitize tx ring index access properly

The tx ring index was immediately trimmed with a
bitmask. This discarded the 0xFFFFFFFF error case
(which theoretically can happen when a device is
abruptly disconnected) and led to using an invalid
tx ring index. This could lead to memory
corruption.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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