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Commit 9255f1de authored by Guennadi Liakhovetski's avatar Guennadi Liakhovetski Committed by Paul Mundt
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sh: guard cookie consistency across termination in the DMA driver 



If all descriptors on a channel are terminated or the channel is released,
update the completed cookie counter to match the last cookie. This prevents
inconsistency warning on resumed DMA operation.

Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 7a5c106a

drivers/dma/shdma.c

+4 −0
Original line number Diff line number Diff line
@@ -722,6 +722,10 @@ static void sh_dmae_chan_ld_cleanup(struct sh_dmae_chan *sh_chan, bool all) 
{

	while (__ld_cleanup(sh_chan, all))

		;



	if (all)

		/* Terminating - forgive uncompleted cookies */

		sh_chan->completed_cookie = sh_chan->common.cookie;

}



static void sh_chan_xfer_ld_queue(struct sh_dmae_chan *sh_chan)