Commit 7abfe04c authored Feb 18, 2017 by Christophe JAILLET Committed by Mark Brown Feb 19, 2017

spi: spi-ti-qspi: Fix error handling



'dma_request_chan_by_mask()' can not return NULL.
Try to keep the logic in 'no_dma:' by resetting 'qspi->rx_chan' in case
of error.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent cce59c22

drivers/spi/spi-ti-qspi.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -718,9 +718,10 @@ static int ti_qspi_probe(struct platform_device *pdev)
		dma_cap_set(DMA_MEMCPY, mask);

		qspi->rx_chan = dma_request_chan_by_mask(&mask);
		if (!qspi->rx_chan) {
		if (IS_ERR(qspi->rx_chan)) {
		dev_err(qspi->dev,
		"No Rx DMA available, trying mmap mode\n");
		qspi->rx_chan = NULL;
		ret = 0;
		goto no_dma;
		}