linux-kernel - Re: [PATCH 04/18] staging: gasket: device registration error and unregister fixups

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Message-ID: <20180716135335.hnvj5kqvsrrwzp3b@mwanda>
Date:   Mon, 16 Jul 2018 16:53:36 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Todd Poynor <toddpoynor@...il.com>
Cc:     Rob Springer <rspringer@...gle.com>,
        John Joseph <jnjoseph@...gle.com>,
        Ben Chan <benchan@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, Zhongze Hu <frankhu@...omium.org>,
        linux-kernel@...r.kernel.org, Simon Que <sque@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Todd Poynor <toddpoynor@...gle.com>,
        Dmitry Torokhov <dtor@...omium.org>
Subject: Re: [PATCH 04/18] staging: gasket: device registration error and
 unregister fixups

On Fri, Jul 13, 2018 at 10:58:02PM -0700, Todd Poynor wrote:
> @@ -376,7 +377,10 @@ int gasket_register_device(const struct gasket_driver_desc *driver_desc)
>  fail1:
>  	class_destroy(internal->class);
>  
> +fail0:

GW-BASIC sytle label names are an anti-pattern.  It's better to name the
labels after what they do, just like function names describes what the
function does.  Here it would be "goto clear_desc;" or something.  It
doesn't have to be perfect but so long as you *try* to name it something
useful that's better than not trying.

> +	mutex_lock(&g_mutex);
>  	g_descs[desc_idx].driver_desc = NULL;
> +	mutex_unlock(&g_mutex);
>  	return ret;
>  }

regards,
dan carpenter