linux-kernel - Re: [EDAC ABI v13 24/25] edac: change the mem allocation scheme to make Documentation/kobject.txt happy

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Date:	Sun, 22 Apr 2012 01:37:10 -0500
From:	Joe Perches <joe@...ches.com>
To:	Mauro Carvalho Chehab <mchehab@...hat.com>
Cc:	Linux Edac Mailing List <linux-edac@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Aristeu Rozanski <arozansk@...hat.com>,
	Doug Thompson <norsk5@...oo.com>,
	Borislav Petkov <borislav.petkov@....com>,
	Mark Gross <mark.gross@...el.com>,
	Jason Uhlenkott <juhlenko@...mai.com>,
	Tim Small <tim@...tersideup.com>,
	Ranganathan Desikan <ravi@...ztechnologies.com>,
	"Arvind R." <arvino55@...il.com>, Olof Johansson <olof@...om.net>,
	Egor Martovetsky <egor@...emi.com>,
	Chris Metcalf <cmetcalf@...era.com>,
	Michal Marek <mmarek@...e.cz>, Jiri Kosina <jkosina@...e.cz>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Hitoshi Mitake <h.mitake@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Shaohui Xie <Shaohui.Xie@...escale.com>,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [EDAC ABI v13 24/25] edac: change the mem allocation scheme to
 make Documentation/kobject.txt happy

On Thu, 2012-04-19 at 10:14 -0300, Mauro Carvalho Chehab wrote:
> diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
[]
> @@ -296,7 +296,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned edac_index,
>  	/*
>  	 * Alocate and fill the csrow/channels structs
>  	 */
> -	mci->csrows = kzalloc(sizeof(*mci->csrows) * tot_csrows, GFP_KERNEL);
> +	mci->csrows = kcalloc(sizeof(*mci->csrows), tot_csrows, GFP_KERNEL);

trivia:  the first 2 args to kcalloc should be swapped.

static inline void *kcalloc(size_t n, size_t size, gfp_t flags)

	kcalloc(tot_csrows, sizeof(*mci->csrows), GFP_KERNEL);
[]
> @@ -307,7 +307,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned edac_index,
>  		csr->csrow_idx = row;
>  		csr->mci = mci;
>  		csr->nr_channels = tot_cschannels;
> -		csr->channels = kzalloc(sizeof(*csr->channels) * tot_cschannels,
> +		csr->channels = kcalloc(sizeof(*csr->channels), tot_cschannels,

and here.

[]
> @@ -323,7 +323,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned edac_index,
>  	/*
>  	 * Allocate and fill the dimm structs
>  	 */
> -	mci->dimms  = kzalloc(sizeof(*mci->dimms) * tot_dimms, GFP_KERNEL);
> +	mci->dimms  = kcalloc(sizeof(*mci->dimms), tot_dimms, GFP_KERNEL);

and here too.


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