linux-kernel - Re: [PATCH 1/9] drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c: use correct structure type name in sizeof

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Message-ID: <1915769.aHlhsWqSsK@avalon>
Date:	Mon, 09 Nov 2015 22:48:26 +0200
From:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	kernel-janitors@...r.kernel.org, linux-ia64@...r.kernel.org,
	ceph-devel@...r.kernel.org, toralf.foerster@....de, hmh@....eng.br,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-media@...r.kernel.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/9] drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c: use correct structure type name in sizeof

Hi Julia,

Thank you for the patch.

On Tuesday 29 July 2014 17:16:43 Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@...6.fr>
> 
> Correct typo in the name of the type given to sizeof.  Because it is the
> size of a pointer that is wanted, the typo has no impact on compilation or
> execution.
> 
> This problem was found using Coccinelle (http://coccinelle.lip6.fr/).  The
> semantic patch used can be found in message 0 of this patch series.
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
> 
> ---
>  drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
> b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c index
> cda8388..255590f 100644
> --- a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
> +++ b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
> @@ -227,7 +227,7 @@ static int vpfe_enable_clock(struct vpfe_device
> *vpfe_dev) return 0;
> 
>  	vpfe_dev->clks = kzalloc(vpfe_cfg->num_clocks *
> -				   sizeof(struct clock *), GFP_KERNEL);
> +				   sizeof(struct clk *), GFP_KERNEL);

I'd use sizeof(*vpfe_dev->clks) to avoid such issues.

Apart from that,

Acked-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

I've applied the patch to my tree with the above change, there's no need to 
resubmit if you agree with the proposal.

>  	if (vpfe_dev->clks == NULL) {
>  		v4l2_err(vpfe_dev->pdev->driver, "Memory allocation failed\n");
>  		return -ENOMEM;

-- 
Regards,

Laurent Pinchart

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