On 13 May 2013 12:25, Wei Yongjun <[email protected]> wrote:
> From: Wei Yongjun <[email protected]>
>
> Fix to return -ENODEV in the dma channel request error handling
> case instead of 0, as done elsewhere in this function.
>
> Signed-off-by: Wei Yongjun <[email protected]>
> ---
> drivers/mtd/nand/fsmc_nand.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
> index 911e243..6988fc8 100644
> --- a/drivers/mtd/nand/fsmc_nand.c
> +++ b/drivers/mtd/nand/fsmc_nand.c
> @@ -1032,6 +1032,7 @@ static int __init fsmc_nand_probe(struct
> platform_device *pdev)
> case USE_DMA_ACCESS:
> dma_cap_zero(mask);
> dma_cap_set(DMA_MEMCPY, mask);
> + ret = -ENODEV;
> host->read_dma_chan = dma_request_channel(mask, filter,
> pdata->read_dma_priv);
> if (!host->read_dma_chan) {
>
Better do it for error cases only.. like:
> if (!host->read_dma_chan) {
ret = -ENODEV;
--
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