From: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Date: Fri, 10 Oct 2014 12:08:27 +0000 (+0530)
Subject: ath10k: fix kernel panic while shutting down AP
X-Git-Tag: omap-for-v3.19/fixes-rc1~125^2~234^2~71^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82d7aba71541a308bc19e869f7cf7423672dee37;p=pandora-kernel.git

ath10k: fix kernel panic while shutting down AP

Based on GFP flag given to DMA coherent allocation, the behaviour of
dma_free_coherent is changed. This behavioural diffrence is noticeable
in ARM platform. If DMA memory is allocated with GFP_KERNEL, free
coherent can not be called inside spin lock. This is causing kernel
crash in ARM platforms. Fix this by changing GFP flag to atomic.

This is most likely a regression from commit 64badcb6d645 ("ath10k: workaround
fw beaconing bug").

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