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SubjectRe: [PATCH] spi: davinci: Fix compilation warning.
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Hi,
yes, You are right. we are getting this warning.
drivers/spi/spi-davinci.c: In function ‘davinci_spi_probe’:
drivers/spi/spi-davinci.c:919:7: warning: assignment makes integer from
pointer without a cast [enabled by default]
ret = spi_davinci_get_pdata(pdev, dspi);

We should return 'int' in both the case.

Thanks
~arvind

On Monday 05 June 2017 06:37 PM, Geert Uytterhoeven wrote:
> Hi Arvind,
>
> On Mon, Jun 5, 2017 at 2:14 PM, Arvind Yadav <arvind.yadav.cs@gmail.com> wrote:
>> If CONFIG_OF is disable, it'll through compilation warning.
>>
>> drivers/spi/spi-davinci.c: In function ‘spi_davinci_get_pdata’:
>> drivers/spi/spi-davinci.c:880:2: warning: return makes pointer from integer without a cast [enabled by default]
>> return -ENODEV;
>>
>> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
>> ---
>> drivers/spi/spi-davinci.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
>> index 2b0805d..93a4009 100644
>> --- a/drivers/spi/spi-davinci.c
>> +++ b/drivers/spi/spi-davinci.c
>> @@ -877,7 +877,7 @@ static int spi_davinci_get_pdata(struct platform_device *pdev,
>> *spi_davinci_get_pdata(struct platform_device *pdev,
>> struct davinci_spi *dspi)
>> {
>> - return -ENODEV;
>> + return ERR_PTR(-ENODEV);
>> }
>> #endif
> And you don't get a warning for spi_davinci_probe() doing
>
> int ret;
>
> ret = spi_davinci_get_pdata(pdev, dspi);
>
> ?
>
> spi_davinci_get_pdata() returns int if CONFIG_OF, else a pointer.
> I guess it always should return int instead.
>
> It's been like this since the function was introduced, in commit
> aae7147dfc522062 ("spi/davinci: add OF support for the spi controller").
>
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds

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