Subject: Re: [PATCH 4/4] zd1211rw: remove unnecessary [kv][mcz]alloc casts

From: Joe Perches <[email-masked]>
Date: Sun, 28 Nov 2010 01:50:45 -0800

On Sun, 2010-11-28 at 10:30 +0100, Johannes Berg wrote:
> On Sun, 2010-11-28 at 01:20 -0800, Joe Perches wrote:
> > On Sun, 2010-11-28 at 10:12 +0100, Johannes Berg wrote:
> > > On Sun, 2010-11-28 at 01:05 -0800, Joe Perches wrote:
> > > > diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c
> > > > @@ -117,8 +117,7 @@ int zd_ioread32v_locked(struct zd_chip *chip, u32 *values, const zd_addr_t *addr
> > > >  	/* Allocate a single memory block for values and addresses. */
> > > >  	count16 = 2*count;
> > > > -	a16 = (zd_addr_t *) kmalloc(count16 * (sizeof(zd_addr_t) + sizeof(u16)),
> > > > -		                   GFP_KERNEL);
> > > > +	a16 = kmalloc(count16 * (sizeof(zd_addr_t) + sizeof(u16)), GFP_KERNEL);
> > > I believe this is on purpose for sparse.
> > Perhaps in a previous version, but not now.
> How do you know? I thought sparse was pretty much not reliable after the
> first error it prints.

Good memory you have Johannes...

http://marc.info/?l=linux-netdev&m=117113743902549&w=3

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