linux-kernel - Re: [PATCH 1/1] ALSA: asihpi: Deletion of an unnecessary check before the function call "vfree"

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Message-ID: <s5hlhmqrlw3.wl-tiwai@suse.de>
Date:	Tue, 02 Dec 2014 18:39:56 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:	Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH 1/1] ALSA: asihpi: Deletion of an unnecessary check before the function call "vfree"

At Tue, 02 Dec 2014 18:11:02 +0100,
SF Markus Elfring wrote:
> 
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Tue, 2 Dec 2014 18:05:32 +0100
> 
> The vfree() function performs also input parameter validation. Thus the test
> around the call is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>

Applied, thanks.


Takashi

> ---
>  sound/pci/asihpi/hpioctl.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
> index e457eb8..6aa677e 100644
> --- a/sound/pci/asihpi/hpioctl.c
> +++ b/sound/pci/asihpi/hpioctl.c
> @@ -547,8 +547,7 @@ void asihpi_adapter_remove(struct pci_dev *pci_dev)
>  	if (pa->irq)
>  		free_irq(pa->irq, pa);
>  
> -	if (pa->p_buffer)
> -		vfree(pa->p_buffer);
> +	vfree(pa->p_buffer);
>  
>  	if (1)
>  		dev_info(&pci_dev->dev,
> -- 
> 2.1.3
> 
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