From: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
To: dmaengine@vger.kernel.org, linux-renesas-soc@vger.kernel.org
Cc: vinod.koul@intel.com, geert+renesas@glider.be,
laurent.pinchart+renesas@ideasonboard.com, mfarooq@visteon.com,
"Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
Subject: [PATCH 3/4] dma: rcar-dma: Fixed active descriptor initializing
Date: Wed, 15 Jun 2016 13:13:07 +0200 [thread overview]
Message-ID: <20160615111308.28739-4-niklas.soderlund+renesas@ragnatech.se> (raw)
In-Reply-To: <20160615111308.28739-1-niklas.soderlund+renesas@ragnatech.se>
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>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
drivers/dma/sh/rcar-dmac.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 7f26576..59951fb 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -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);
--
2.8.3
next prev parent reply other threads:[~2016-06-15 11:21 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-15 11:13 [PATCH 0/4] Residue patches for rcar-dmac from renesas-drivers Niklas Söderlund
2016-06-15 11:13 ` [PATCH 1/4] dma: rcar-dma: use result of updated get_residue in tx_status Niklas Söderlund
2016-06-15 22:19 ` Laurent Pinchart
2016-06-15 11:13 ` [PATCH 2/4] dmaengine: rcar-dmac: warn if transfer cannot start as TE = 1 Niklas Söderlund
2016-06-15 22:20 ` Laurent Pinchart
2016-06-15 11:13 ` Niklas Söderlund [this message]
2016-06-15 22:30 ` [PATCH 3/4] dma: rcar-dma: Fixed active descriptor initializing Laurent Pinchart
2016-06-15 11:13 ` [PATCH 4/4] dmaengine: rcar-dmac: Fix residue reporting for pending descriptors Niklas Söderlund
2016-06-15 22:26 ` Laurent Pinchart
2016-06-15 13:45 ` [PATCH 0/4] Residue patches for rcar-dmac from renesas-drivers Ramesh Shanmugasundaram
2016-06-28 14:36 ` Vinod Koul
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