Re: [PATCH] drivers: Use kzalloc instead of 'kmalloc+memset', where possible.

[Joe Perches <joe@perches.com>]

On Mon, 2011-05-23 at 23:40 +0600, Rakib Mullick wrote:
> Following patch removes the uses of 'kmalloc+memset' from various
> drivers subsystems, which is replaced by kzalloc. kzalloc take care of
> setting allocated memory with null, so it helps to get rid from using
> memset.
> diff --git a/drivers/gpu/drm/drm_scatter.c b/drivers/gpu/drm/drm_scatter.c
[]
> -	entry->pagelist = kmalloc(pages * sizeof(*entry->pagelist), GFP_KERNEL);
> +	entry->pagelist = kzalloc(pages * sizeof(*entry->pagelist), GFP_KERNEL);

Perhaps it's better to use:

	entry->pagelist =  kcalloc(pages, sizeof(*entry->pagelist), GFP_KERNEL);

> -	entry->busaddr = kmalloc(pages * sizeof(*entry->busaddr), GFP_KERNEL);
> +	entry->busaddr = kzalloc(pages * sizeof(*entry->busaddr), GFP_KERNEL);

here too.