From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 14 Jan 2013 09:50:15 +0000 (+0100)
Subject: ath9k: remove sc->rx.rxbuflock to fix a deadlock
X-Git-Tag: v3.8-rc6~20^2~45^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=463e3ed3eacc8f47866e5d612bd8ee0bcee5e2f0;p=pandora-kernel.git

ath9k: remove sc->rx.rxbuflock to fix a deadlock

The commit "ath9k: fix rx flush handling" added a deadlock that happens
because ath_rx_tasklet is called in a section that has already taken the
rx buffer lock.

It seems that the only purpose of the rxbuflock was a band-aid fix to the
reset vs rx tasklet race, which has been properly fixed in the commit
"ath9k: add a better fix for the rx tasklet vs rx flush race".

Now that the fix is in, we can safely remove the lock to avoid such issues.

Cc: stable@vger.kernel.org
Reported-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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