> -----Original Message-----
> From: Axel Lin [mailto:[email protected]]
> Sent: Wednesday, March 19, 2014 11:55 AM
> To: Mark Brown
> Cc: Yang, Wenyou; [email protected]
> Subject: [PATCH 2/7] spi: atmel: Let spi core validate Tx/Rx buffers for
> non-zero length transfer
>
> Signed-off-by: Axel Lin <[email protected]>
Acked-by: Wenyou.Yang <[email protected]>
> ---
> drivers/spi/spi-atmel.c | 5 -----
> 1 file changed, 5 deletions(-)
>
> diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index
> bda961e..c54492b 100644
> --- a/drivers/spi/spi-atmel.c
> +++ b/drivers/spi/spi-atmel.c
> @@ -1065,11 +1065,6 @@ static int atmel_spi_one_transfer(struct
> spi_master *master,
>
> as = spi_master_get_devdata(master);
>
> - if (!(xfer->tx_buf || xfer->rx_buf) && xfer->len) {
> - dev_dbg(&spi->dev, "missing rx or tx buf\n");
> - return -EINVAL;
> - }
> -
> if (xfer->bits_per_word) {
> asd = spi->controller_state;
> bits = (asd->csr >> 4) & 0xf;
> --
> 1.8.3.2
>
>
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