Commit 0e5d7b1e authored by Eric Long's avatar Eric Long Committed by Vinod Koul
Browse files

dmaengine: sprd: Set cur_desc as NULL when free or terminate one dma channel 



It will be failed to start one new transfer if the channel started one
none interrupt transfer before, since we will only set the schan->cur_desc
as NULL depending on the transfer interrupt now. Thus we should set
schan->cur_desc as NULL when free or terminate one dma channel to
avoid this issue.

Signed-off-by: default avatarEric Long <eric.long@spreadtrum.com>
Signed-off-by: default avatarBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 13e89979

drivers/dma/sprd-dma.c

+1 −0
Original line number Diff line number Diff line
@@ -439,6 +439,7 @@ static void sprd_dma_stop(struct sprd_dma_chn *schan) 
	sprd_dma_stop_and_disable(schan);

	sprd_dma_unset_uid(schan);

	sprd_dma_clear_int(schan);

	schan->cur_desc = NULL;

}



static bool sprd_dma_check_trans_done(struct sprd_dma_desc *sdesc,