[PATCH 3.13 040/105] spi: dw-mid: terminate ongoing transfers at exit

Kamal Mostafa
2014-10-27T19:03:25Z

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

commit 8e45ef682cb31fda62ed4eeede5d9745a0a1b1e2 upstream.

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

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
drivers/spi/spi-dw-mid.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 48c170c..c8b5bbe 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -89,7 +89,10 @@ err_exit:

static void mid_spi_dma_exit(struct dw_spi *dws)
{
+ dmaengine_terminate_all(dws->txchan);
dma_release_channel(dws->txchan);
+
+ dmaengine_terminate_all(dws->rxchan);
dma_release_channel(dws->rxchan);
}

--
1.9.1