diff options
Diffstat (limited to 'drivers/spi/spi-at91-usart.c')
| -rw-r--r-- | drivers/spi/spi-at91-usart.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c index b11d0f993cc7..1cea8e159344 100644 --- a/drivers/spi/spi-at91-usart.c +++ b/drivers/spi/spi-at91-usart.c @@ -132,28 +132,14 @@ static int at91_usart_spi_configure_dma(struct spi_controller *ctlr, dma_cap_set(DMA_SLAVE, mask); ctlr->dma_tx = dma_request_chan(dev, "tx"); - if (IS_ERR_OR_NULL(ctlr->dma_tx)) { - if (IS_ERR(ctlr->dma_tx)) { - err = PTR_ERR(ctlr->dma_tx); - goto at91_usart_spi_error_clear; - } - - dev_dbg(dev, - "DMA TX channel not available, SPI unable to use DMA\n"); - err = -EBUSY; + if (IS_ERR(ctlr->dma_tx)) { + err = PTR_ERR(ctlr->dma_tx); goto at91_usart_spi_error_clear; } ctlr->dma_rx = dma_request_chan(dev, "rx"); - if (IS_ERR_OR_NULL(ctlr->dma_rx)) { - if (IS_ERR(ctlr->dma_rx)) { - err = PTR_ERR(ctlr->dma_rx); - goto at91_usart_spi_error; - } - - dev_dbg(dev, - "DMA RX channel not available, SPI unable to use DMA\n"); - err = -EBUSY; + if (IS_ERR(ctlr->dma_rx)) { + err = PTR_ERR(ctlr->dma_rx); goto at91_usart_spi_error; } |