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[RESEND,6/6] dma: rcar-dma: Fixed active descriptor initializing

Message ID 1442776262-2503-7-git-send-email-hamzahfrq.sub@gmail.com (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

hamzahfrq.sub@gmail.com Sept. 20, 2015, 7:11 p.m. UTC 
From: Muhammad Hamza Farooq <mfarooq@visteon.com>

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>
---
 drivers/dma/sh/rcar-dmac.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index d007351..39306c9 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1042,6 +1042,7 @@  static void rcar_dmac_free_chan_resources(struct dma_chan *chan)
 	list_splice_init(&rchan->desc.active, &list);
 	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);