linux-kernel - Re: [PATCH V2 13/19] irqchip: crossbar: change the goto naming

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Message-ID: <20140612134139.GZ8664@titan.lakedaemon.net>
Date:	Thu, 12 Jun 2014 09:41:39 -0400
From:	Jason Cooper <jason@...edaemon.net>
To:	Sricharan R <r.sricharan@...com>
Cc:	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	tony@...mide.com, santosh.shilimkar@...com, nm@...com,
	rnayak@...com, linux@....linux.org.uk, tglx@...utronix.de
Subject: Re: [PATCH V2 13/19] irqchip: crossbar: change the goto naming

On Thu, Jun 12, 2014 at 05:23:21PM +0530, Sricharan R wrote:
> From: Nishanth Menon <nm@...com>
> 
> Using err1,2,3,4 etc makes it hard to ensure a new exit path in the
> middle will not result in spurious changes, so rename the error paths
> as per the function it does.
> 
> Signed-off-by: Nishanth Menon <nm@...com>
> ---
>  drivers/irqchip/irq-crossbar.c |   22 +++++++++++-----------
>  1 file changed, 11 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
> index 524e6e9..cf0d79f 100644
> --- a/drivers/irqchip/irq-crossbar.c
> +++ b/drivers/irqchip/irq-crossbar.c
> @@ -152,17 +152,17 @@ static int __init crossbar_of_init(struct device_node *node,
>  
>  	cb->crossbar_base = of_iomap(node, 0);
>  	if (!cb->crossbar_base)
> -		goto err1;
> +		goto err_cb;
>  
>  	of_property_read_u32(node, "ti,max-irqs", &max);
>  	if (!max) {
>  		pr_err("missing 'ti,max-irqs' property\n");
>  		ret = -EINVAL;
> -		goto err2;
> +		goto err_base;
>  	}
>  	cb->irq_map = kcalloc(max, sizeof(int), GFP_KERNEL);
>  	if (!cb->irq_map)
> -		goto err2;
> +		goto err_base;
>  
>  	cb->int_max = max;
>  
> @@ -181,7 +181,7 @@ static int __init crossbar_of_init(struct device_node *node,
>  			if (entry > max) {
>  				pr_err("Invalid reserved entry\n");
>  				ret = -EINVAL;
> -				goto err3;
> +				goto err_irq_map;
>  			}
>  			cb->irq_map[entry] = IRQ_RESERVED;
>  		}
> @@ -189,7 +189,7 @@ static int __init crossbar_of_init(struct device_node *node,
>  
>  	cb->register_offsets = kcalloc(max, sizeof(int), GFP_KERNEL);
>  	if (!cb->register_offsets)
> -		goto err3;
> +		goto err_irq_map;
>  
>  	of_property_read_u32(node, "ti,reg-size", &size);
>  
> @@ -206,7 +206,7 @@ static int __init crossbar_of_init(struct device_node *node,
>  	default:
>  		pr_err("Invalid reg-size property\n");
>  		ret = -EINVAL;
> -		goto err4;
> +		goto err_reg_offset;
>  		break;
>  	}
>  
> @@ -234,7 +234,7 @@ static int __init crossbar_of_init(struct device_node *node,
>  			if (entry > max) {
>  				pr_err("Invalid skip entry\n");
>  				ret = -EINVAL;
> -				goto err4;
> +				goto err_reg_offset;
>  			}
>  			cb->irq_map[entry] = IRQ_SKIP;
>  		}
> @@ -251,13 +251,13 @@ static int __init crossbar_of_init(struct device_node *node,
>  	register_routable_domain_ops(&routable_irq_domain_ops);
>  	return 0;
>  
> -err4:
> +err_reg_offset:
>  	kfree(cb->register_offsets);
> -err3:
> +err_irq_map:
>  	kfree(cb->irq_map);
> -err2:
> +err_base:
>  	iounmap(cb->crossbar_base);
> -err1:
> +err_cb:
>  	kfree(cb);
>  	return ret;

Ahhh :-)  Ignore my previous request.

thx,

Jason.
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