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omap: Fix race condition in omap dma driver
authorTao Hu <taohu@motorola.com>
Wed, 11 Nov 2009 02:55:17 +0000 (18:55 -0800)
committerGrazvydas Ignotas <notasas@gmail.com>
Thu, 10 Jun 2010 13:17:24 +0000 (16:17 +0300)
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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