From: Michal Kazior <michal.kazior@tieto.com>
Date: Mon, 26 May 2014 10:02:58 +0000 (+0200)
Subject: ath10k: protect src_ring state with ce_lock in tx_sg()
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~36^2~99^2^2~1^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7147a13135ee717397969d33a139204dfe793022;p=pandora-kernel.git

ath10k: protect src_ring state with ce_lock in tx_sg()

It was possible to read invalid state of CE ring
buffer indexes. This could lead to scatter-gather
transfer failure in mid-way and crash firmware
later by leaving garbage data on the ring.

Reported-By: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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