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serial: ifx6x60: dma_alloc_coherent must use parent dev 

This driver is a SPI protocol driver and has no DMA ops
associated with the device so the call will fail. Furthermore,
the DMA allocation made here will be used by the SPI
controller driver (parent dev) so it makes sense to
pass that device instead.

Signed-off-by: Russ Gorby <russ.gorby@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Russ Gorby 2011-02-07 12:02:28 -08:00 committed by Greg Kroah-Hartman
parent b68f23b24e
commit 5fc3249520
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/serial/ifx6x60.c
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@ -998,7 +998,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ifx_dev->spi_slave_cts = 0;
/*initialize transfer and dma buffers */
ifx_dev->tx_buffer = dma_alloc_coherent(&ifx_dev->spi_dev->dev,
ifx_dev->tx_buffer = dma_alloc_coherent(ifx_dev->spi_dev->dev.parent,
IFX_SPI_TRANSFER_SIZE,
&ifx_dev->tx_bus,
GFP_KERNEL);
@ -1007,7 +1007,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ret = -ENOMEM;
goto error_ret;
}
ifx_dev->rx_buffer = dma_alloc_coherent(&ifx_dev->spi_dev->dev,
ifx_dev->rx_buffer = dma_alloc_coherent(ifx_dev->spi_dev->dev.parent,
IFX_SPI_TRANSFER_SIZE,
&ifx_dev->rx_bus,
GFP_KERNEL);