| Message ID | 20170218094202.6454-1-christophe.jaillet@wanadoo.fr (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 30fb27239f987c53429f24297f5d46e28d0e16ed |
| Headers | show |
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c index ec6fb09e2e17..0fefa6423ff4 100644 --- a/drivers/spi/spi-ti-qspi.c +++ b/drivers/spi/spi-ti-qspi.c @@ -714,9 +714,10 @@ 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; }
'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> --- drivers/spi/spi-ti-qspi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)