[PATCH v5 01/11] spi: imx: terminate RX DMA transaction in case of TX DMA timeout

From: Anton Bondarenko
Date: Sat Dec 05 2015 - 11:59:57 EST


Not only TX DMA should be terminated, but RX DMA also. It's required
to avoid accidential DMA memory writes from RX DMA channel and properly
terminate transaction.

Signed-off-by: Anton Bondarenko <anton.bondarenko.sama@xxxxxxxxx>
---
drivers/spi/spi-imx.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 0e5723a..fb3bcc4 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -958,6 +958,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
dev_driver_string(&master->dev),
dev_name(&master->dev));
dmaengine_terminate_all(master->dma_tx);
+ dmaengine_terminate_all(master->dma_rx);
} else {
timeout = wait_for_completion_timeout(
&spi_imx->dma_rx_completion, IMX_DMA_TIMEOUT);
--
2.6.3

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