linux-kernel - Re: [PATCH 01/12] arch/cris: Remove unnecessary kmalloc casts

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Date:	Mon, 7 Jun 2010 21:44:51 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Joe Perches <joe@...ches.com>
cc:	Jiri Kosina <trivial@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/12] arch/cris: Remove unnecessary kmalloc casts

On Mon, 7 Jun 2010, Joe Perches wrote:

> And separate declaration from allocation
> Still no error checking on failure, but it probably doesn't matter.
> 
> Signed-off-by: Joe Perches <joe@...ches.com>
> ---
>  arch/cris/arch-v32/mm/intmem.c |   13 +++++--------
>  1 files changed, 5 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/cris/arch-v32/mm/intmem.c b/arch/cris/arch-v32/mm/intmem.c
> index 9e8b69c..1b17d92 100644
> --- a/arch/cris/arch-v32/mm/intmem.c
> +++ b/arch/cris/arch-v32/mm/intmem.c
> @@ -33,8 +33,8 @@ static void crisv32_intmem_init(void)
>  {
>  	static int initiated = 0;
>  	if (!initiated) {
> -		struct intmem_allocation* alloc =
> -		  (struct intmem_allocation*)kmalloc(sizeof *alloc, GFP_KERNEL);
> +		struct intmem_allocation* alloc;
> +		alloc = kmalloc(sizeof *alloc, GFP_KERNEL);
>  		INIT_LIST_HEAD(&intmem_allocations);
>  		intmem_virtual = ioremap(MEM_INTMEM_START + RESERVED_SIZE,
>  					 MEM_INTMEM_SIZE - RESERVED_SIZE);
> @@ -62,9 +62,8 @@ void* crisv32_intmem_alloc(unsigned size, unsigned align)
>  		if (allocation->status == STATUS_FREE &&
>  		    allocation->size >= size + alignment) {
>  			if (allocation->size > size + alignment) {
> -				struct intmem_allocation* alloc =
> -					(struct intmem_allocation*)
> -					kmalloc(sizeof *alloc, GFP_ATOMIC);
> +				struct intmem_allocation* alloc;
> +				alloc = kmalloc(sizeof *alloc, GFP_ATOMIC);
>  				alloc->status = STATUS_FREE;
>  				alloc->size = allocation->size - size -
>  					alignment;

Why not fix the checkpatch failures at the same time?

ERROR: "foo* bar" should be "foo *bar"
#26: FILE: arch/cris/arch-v32/mm/intmem.c:36:
+		struct intmem_allocation* alloc;

ERROR: "foo* bar" should be "foo *bar"
#38: FILE: arch/cris/arch-v32/mm/intmem.c:65:
+				struct intmem_allocation* alloc;
--
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