Re: [PATCH V2 2/2] spi: s3c64xx: fix checkpatch error and warnings

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On Mon, 2013-07-15 at 15:11 +0900, Jingoo Han wrote:
[]
> diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
[]
> @@ -338,8 +338,10 @@ static int acquire_dma(struct s3c64xx_spi_driver_data *sdd)
[]
> -	sdd->rx_dma.ch = (void *)sdd->ops->request(sdd->rx_dma.dmach, &req, dev, "rx");
> -	sdd->tx_dma.ch = (void *)sdd->ops->request(sdd->tx_dma.dmach, &req, dev, "tx");
> +	sdd->rx_dma.ch = (void *)sdd->ops->request(sdd->rx_dma.dmach,
> +						&req, dev, "rx");
> +	sdd->tx_dma.ch = (void *)sdd->ops->request(sdd->tx_dma.dmach,
> +						&req, dev, "tx");

There should be sparse errors here.
sdd->ops->request is unsigned int, not unsigned long.
Care to fix the cast of unsigned to pointer too?

> @@ -439,7 +441,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
>  
>  	/* Acquire DMA channels */
>  	sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter,
> -				(void*)sdd->rx_dma.dmach, dev, "rx");
> +				(void *)sdd->rx_dma.dmach, dev, "rx");

It seems unsigned to pointer conversions are pretty
rampant in this code.


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