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dmaengine: rcar-dmac: Fixed active descriptor initializing 

Running descriptor pointer is set to NULL upon freeing resources. Other-
wise, rcar_dmac_issue_pending might not start new transfers

Signed-off-by: Muhammad Hamza Farooq <mfarooq@visteon.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Muhammad Hamza Farooq 2016-06-30 17:15:17 +02:00 committed by Vinod Koul
parent 0f78e3b58f
commit 48c73659ab
1 changed files with 2 additions and 0 deletions
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2
drivers/dma/sh/rcar-dmac.c
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@ -990,6 +990,8 @@ static void rcar_dmac_free_chan_resources(struct dma_chan *chan)
list_splice_init(&rchan->desc.done, &list);
list_splice_init(&rchan->desc.wait, &list);
rchan->desc.running = NULL;
list_for_each_entry(desc, &list, node)
rcar_dmac_realloc_hwdesc(rchan, desc, 0);