linux-kernel - [PATCH 3.2 027/164] spi: dw-mid: terminate ongoing transfers at exit

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Date:	Fri, 12 Dec 2014 06:14:25 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org, "Mark Brown" <broonie@...nel.org>,
	"Andy Shevchenko" <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH 3.2 027/164] spi: dw-mid: terminate ongoing transfers at exit

3.2.65-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

commit 8e45ef682cb31fda62ed4eeede5d9745a0a1b1e2 upstream.

Do full clean up at exit, means terminate all ongoing DMA transfers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/spi/spi-dw-mid.c | 4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -90,7 +90,11 @@ static void mid_spi_dma_exit(struct dw_s
 {
 	if (!dws->dma_inited)
 		return;
+
+	dmaengine_terminate_all(dws->txchan);
 	dma_release_channel(dws->txchan);
+
+	dmaengine_terminate_all(dws->rxchan);
 	dma_release_channel(dws->rxchan);
 }
 

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