From: Michal Kazior <michal.kazior@tieto.com>
Date: Mon, 26 May 2014 09:46:03 +0000 (+0300)
Subject: ath10k: drain tx before restarting hw
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~36^2~99^2^2~1^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bca7bafbe2b75ed31cc6943b81218ea0f8a13686;p=pandora-kernel.git

ath10k: drain tx before restarting hw

This makes sure no further tx requests are
submitted to HTT before driver teardown.

This should prevent invalid pointer/NULL
dereference on htt tx pool in ath10k_htt_tx() in
some cases of heavy traffic.

kvalo: remove the WARN_ON() if conf_mutex is held

Reported-By: Ben Greear <greearb@candelatech.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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