Re: [PATCH 3/3] nand: mrvl: don't double cast error pointer

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On Mon, Jul 25, 2016 at 10:20:59AM +0200, Sascha Hauer wrote:
> On Fri, Jul 22, 2016 at 03:00:21PM +0200, Lucas Stach wrote:
> > Fixes:
> > In function 'alloc_nand_resource':
> > warning: return makes pointer from integer without a cast
> > 
> > Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> > ---
> >  drivers/mtd/nand/nand_mrvl_nfc.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/mtd/nand/nand_mrvl_nfc.c b/drivers/mtd/nand/nand_mrvl_nfc.c
> > index 578790da2612..1341f084d8f8 100644
> > --- a/drivers/mtd/nand/nand_mrvl_nfc.c
> > +++ b/drivers/mtd/nand/nand_mrvl_nfc.c
> > @@ -1138,7 +1138,7 @@ static struct mrvl_nand_host *alloc_nand_resource(struct device_d *dev)
> >  	host->dev = dev;
> >  	iores = dev_request_mem_resource(dev, 0);
> >  	if (IS_ERR(iores))
> > -		return PTR_ERR(iores);
> > +		return iores;
> 
> Better use ERR_CAST() here. It makes it more explicit that an error is
> returned here.

Just saw there are some more places that could use ERR_CAST. I sent an
alternative patch.

Sascha

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