[PATCH 3.16 058/127] spi: dw-mid: terminate ongoing transfers at exit
From: Greg Kroah-Hartman
Date: Mon Oct 27 2014 - 23:45:11 EST
3.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
commit 8e45ef682cb31fda62ed4eeede5d9745a0a1b1e2 upstream.
Do full clean up at exit, means terminate all ongoing DMA transfers.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -91,7 +91,11 @@ 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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