Re: [PATCH] dmaengine: at_hdmac: fix race condition in atc_advance_work()

2013-04-16 Thread Vinod Koul
On Tue, Apr 16, 2013 at 01:49:34PM +0200, Nicolas Ferre wrote: > From: Ludovic Desroches > > The BUG_ON() directive is triggered probably due to a latency modification > following inclusion of c10d736 (softirq: reduce latencies). > This condition has not been met before 3.9-rc1 and doesn't trigge

[PATCH] dmaengine: at_hdmac: fix race condition in atc_advance_work()

2013-04-16 Thread Nicolas Ferre
From: Ludovic Desroches The BUG_ON() directive is triggered probably due to a latency modification following inclusion of c10d736 (softirq: reduce latencies). This condition has not been met before 3.9-rc1 and doesn't trigger without this patch. We now make sure that DMA channel is idle before c