From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Mon, 17 Mar 2014 13:34:18 +0000 (+0200)
Subject: wil6210: Fix kernel oops in reset flow
X-Git-Tag: v3.15-rc1~113^2~93^2^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0fef1818d0888067f1231b05a08b2d56f017a169;p=pandora-kernel.git

wil6210: Fix kernel oops in reset flow

wil_reset() removes vring's
At the same time NAPI may be active performing Rx/Tx completion.
If this happens, Rx/Tx polling functions going to access already removed vrings

Make sure NAPI is idle and won't be started prior to vring removal.
For this, track NAPI enabled state

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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