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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>
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1 changed files with 2 additions and 1 deletions
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@ -718,9 +718,10 @@ static int ti_qspi_probe(struct platform_device *pdev)
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dma_cap_set(DMA_MEMCPY, mask);
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qspi->rx_chan = dma_request_chan_by_mask(&mask);
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if (!qspi->rx_chan) {
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if (IS_ERR(qspi->rx_chan)) {
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dev_err(qspi->dev,
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"No Rx DMA available, trying mmap mode\n");
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qspi->rx_chan = NULL;
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ret = 0;
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goto no_dma;
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}
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