From: Tim Gardner <timg@tpi.com>
Date: Wed, 20 Apr 2011 09:00:49 +0000 (+0000)
Subject: atl1c: Fix work event interrupt/task races
X-Git-Tag: v2.6.39-rc6~7^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cb771838715b1c470bc5735bdae709b33b18e0ad;p=pandora-kernel.git

atl1c: Fix work event interrupt/task races

The mechanism used to initiate work events from the interrupt
handler has a classic read/modify/write race between the interrupt
handler that sets the condition, and the worker task that reads and
clears the condition. Close these races by using atomic
bit fields.

Cc: stable@kernel.org
Cc: Jie Yang <jie.yang@atheros.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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