linux-kernel - Re: [PATCH 5/8] cris-cryptocop: Move an assignment for the variable "nooutpages" in cryptocop_ioctl

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Date:   Sat, 27 Aug 2016 21:07:28 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>
cc:     linux-cris-kernel@...s.com,
        Adam Buchbinder <adam.buchbinder@...il.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Ingo Molnar <mingo@...nel.org>,
        Jesper Nilsson <jesper.nilsson@...s.com>,
        Jiri Kosina <jkosina@...e.cz>,
        Mikael Starvik <starvik@...s.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH 5/8] cris-cryptocop: Move an assignment for the variable
 "nooutpages" in cryptocop_ioctl_process()



On Fri, 26 Aug 2016, SF Markus Elfring wrote:

> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Fri, 26 Aug 2016 13:38:30 +0200
>
> Move the assignment for the local variable "nooutpages" behind
> the source code for memory allocations by this function.
>
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
>  arch/cris/arch-v32/drivers/cryptocop.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c
> index 26347a2..cd34723 100644
> --- a/arch/cris/arch-v32/drivers/cryptocop.c
> +++ b/arch/cris/arch-v32/drivers/cryptocop.c
> @@ -2469,7 +2469,7 @@ static int cryptocop_ioctl_process(struct inode *inode, struct file *filp, unsig
>  	struct page                     **inpages = NULL;
>  	struct page                     **outpages = NULL;
>  	int                             noinpages = 0;
> -	int                             nooutpages = 0;
> +	int                             nooutpages;
>
>  	struct cryptocop_desc           descs[5]; /* Max 5 descriptors are needed, there are three transforms that
>  						   * can get connected/disconnected on different places in the indata. */
> @@ -2695,6 +2695,8 @@ static int cryptocop_ioctl_process(struct inode *inode, struct file *filp, unsig
>  			err = -ENOMEM;
>  			goto free_inpages;
>  		}
> +	} else {
> +		nooutpages = 0;

Why is it better?  4 characters have becomes 2 lines.

julia

>  	}
>
>  	/* Acquire the mm page semaphore. */
> --
> 2.9.3
>
>