linux-kernel - Re: [PATCH 1/4] cpu: clean up register

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Message-ID: <57BA70D2.9000709@linaro.org>
Date:   Mon, 22 Aug 2016 11:26:10 +0800
From:   Alex Shi <alex.shi@...aro.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] cpu: clean up register_cpu func

Is there any comments for this patch series?

Thanks!

On 08/19/2016 04:25 PM, Alex Shi wrote:
> This patch could reduce one branch in this function. Also
> make the code more readble.
> 
> Signed-off-by: Alex Shi <alex.shi@...aro.org>
> To: linux-kernel@...r.kernel.org
> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
> ---
>  drivers/base/cpu.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
> index 691eeea..4c28e1a 100644
> --- a/drivers/base/cpu.c
> +++ b/drivers/base/cpu.c
> @@ -371,12 +371,13 @@ int register_cpu(struct cpu *cpu, int num)
>  	if (cpu->hotpluggable)
>  		cpu->dev.groups = hotplugable_cpu_attr_groups;
>  	error = device_register(&cpu->dev);
> -	if (!error)
> -		per_cpu(cpu_sys_devices, num) = &cpu->dev;
> -	if (!error)
> -		register_cpu_under_node(num, cpu_to_node(num));
> +	if (error)
> +		return error;
>  
> -	return error;
> +	per_cpu(cpu_sys_devices, num) = &cpu->dev;
> +	register_cpu_under_node(num, cpu_to_node(num));
> +
> +	return 0;
>  }
>  
>  struct device *get_cpu_device(unsigned cpu)
>