From: Tao Hu <taohu@motorola.com>
Date: Wed, 11 Nov 2009 02:55:17 +0000 (-0800)
Subject: omap: Fix race condition in omap dma driver
X-Git-Tag: v2.6.32-rc7~1^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee90732456fe8e75406fdd3cd136a4bfb7ce31f5;p=pandora-kernel.git

omap: Fix race condition in omap dma driver

The bug could cause irq enable bit of one DMA channel is
cleared/set unexpectedly when 2 (or more) drivers are calling
omap_request_dma()/omap_free_dma() simultaneously

Signed-off-by: Fei Yang <AFY095@motorola.com>
Signed-off-by: Tao Hu <taohu@motorola.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

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