Hi Thierry,
On Wed, 8 Aug 2012 08:54:32 +0200, Thierry Reding wrote:
> Replacing the devm_request_mem_region() and devm_ioremap_nocache() calls
> by a single call to devm_request_and_ioremap() simplifies the code.
>
> Signed-off-by: Thierry Reding <[email protected]>
> ---
> drivers/i2c/busses/i2c-ocores.c | 15 +++------------
> 1 file changed, 3 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
> index bffd550..1fad4ae 100644
> --- a/drivers/i2c/busses/i2c-ocores.c
> +++ b/drivers/i2c/busses/i2c-ocores.c
> @@ -283,18 +283,9 @@ static int __devinit ocores_i2c_probe(struct
> platform_device *pdev)
> if (!i2c)
> return -ENOMEM;
>
> - if (!devm_request_mem_region(&pdev->dev, res->start,
> - resource_size(res), pdev->name)) {
> - dev_err(&pdev->dev, "Memory region busy\n");
> - return -EBUSY;
> - }
> -
> - i2c->base = devm_ioremap_nocache(&pdev->dev, res->start,
> - resource_size(res));
> - if (!i2c->base) {
> - dev_err(&pdev->dev, "Unable to map registers\n");
> - return -EIO;
> - }
> + i2c->base = devm_request_and_ioremap(&pdev->dev, res);
> + if (!i2c->base)
> + return -EADDRNOTAVAIL;
I would suggest sticking to -EBUSY, AFAIK EADDRNOTAVAIL is for network
address errors.
>
> pdata = pdev->dev.platform_data;
> if (pdata) {
--
Jean Delvare
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