From 3d6224e63be39ff26cf416492cb3923cd3d07dd0 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Wed, 18 Mar 2020 02:15:58 +0200 Subject: spi: spi-fsl-dspi: Avoid NULL pointer in dspi_slave_abort for non-DMA mode The driver does not create the dspi->dma structure unless operating in DSPI_DMA_MODE, so it makes sense to check for that. Fixes: f4b323905d8b ("spi: Introduce dspi_slave_abort() function for NXP's dspi SPI driver") Signed-off-by: Vladimir Oltean Tested-by: Michael Walle Link: https://lore.kernel.org/r/20200318001603.9650-8-olteanv@gmail.com Signed-off-by: Mark Brown --- drivers/spi/spi-fsl-dspi.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/spi') diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index b65c21d048f9..81e22b6eadc7 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -1192,8 +1192,10 @@ static int dspi_slave_abort(struct spi_master *master) * Terminate all pending DMA transactions for the SPI working * in SLAVE mode. */ - dmaengine_terminate_sync(dspi->dma->chan_rx); - dmaengine_terminate_sync(dspi->dma->chan_tx); + if (dspi->devtype_data->trans_mode == DSPI_DMA_MODE) { + dmaengine_terminate_sync(dspi->dma->chan_rx); + dmaengine_terminate_sync(dspi->dma->chan_tx); + } /* Clear the internal DSPI RX and TX FIFO buffers */ regmap_update_bits(dspi->regmap, SPI_MCR, -- cgit v1.2.3