linux-kernel - Re: [Patch 09/16] Remove unnecessary kmalloc casts in the pci subsystem.

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Message-Id: <20070731.131923.104035780.davem@davemloft.net>
Date:	Tue, 31 Jul 2007 13:19:23 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	borntraeger@...ibm.com
Cc:	jack@...keye.stone.uk.eu.org, linux-kernel@...r.kernel.org,
	trivial@...nel.org, gregkh@...e.de
Subject: Re: [Patch 09/16] Remove unnecessary kmalloc casts in the pci
 subsystem.

From: Christian Borntraeger <borntraeger@...ibm.com>
Date: Tue, 31 Jul 2007 15:53:28 +0200

> Am Dienstag, 31. Juli 2007 schrieb jack@...keye.stone.uk.eu.org:
> > --- a/drivers/pci/rom.c
> > +++ b/drivers/pci/rom.c
> > @@ -185,7 +185,7 @@ void __iomem *pci_map_rom_copy(struct pc
> >  			  IORESOURCE_ROM_BIOS_COPY))
> >  		return rom;
> > 
> > -	res->start = (unsigned long)kmalloc(*size, GFP_KERNEL);
> > +	res->start = kmalloc(*size, GFP_KERNEL);
> 
> This looks wrong. void * doesnt need a cast to a pointer, but res->start is an 
> integer u32 type, and therefore we need a cast, no?

Similar issue with the arch/sparc/kernel/ebus.c change.

If the cast is being done to an integer type you can't
remove it.
-
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