Commit e47b33c0 authored Dec 05, 2015 by Anton Bondarenko Committed by Mark Brown Dec 07, 2015

spi: imx: terminate RX DMA transaction in case of TX DMA timeout



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@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent 9f6aa42b

drivers/spi/spi-imx.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -968,6 +968,7 @@ 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);