linux-kernel - Re: [PATCH] exporting capability code/name pairs (try #5)

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Date:	Fri, 15 Feb 2008 09:58:29 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Kohei KaiGai <kaigai@...jp.nec.com>
CC:	akpm@...l.org, "Serge E. Hallyn" <serue@...ibm.com>,
	"Andrew G. Morgan" <morgan@...nel.org>, jmorris@...ei.org,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, adobriyan@...il.com
Subject: Re: [PATCH] exporting capability code/name pairs (try #5)

Kohei KaiGai wrote:

<...snip...>

> +static int __init capability_export_names(void)
> +{
> +	/* make /sys/kernel/capability */
> +	capability_kobj = kobject_create_and_add("capability", kernel_kobj);
> +	if (!capability_kobj)
> +		goto error0;
> +
> +	/* make /sys/kernel/capability/names */
> +	if (sysfs_create_group(capability_kobj,
> +			       &capability_name_attr_group))
> +		goto error1;
> +
> +	/* make /sys/kernel/capability/codes */
> +	if (sysfs_create_group(capability_kobj,
> +			       &capability_code_attr_group))
> +		goto error2;
> +
> +	if (sysfs_create_file(capability_kobj,
> +			      &cap_version_attr.attr))
> +		goto error3;
> +
> +	return 0;
> +
> +error3:
> +	sysfs_remove_group(capability_kobj, &capability_code_attr_group);
> +error2:
> +	sysfs_remove_group(capability_kobj, &capability_name_attr_group);
> +error1:
> +	kobject_put(capability_kobj);
> +error0:
> +	printk(KERN_ERR "Unable to export capabilities\n");
> +
> +	return 0;

Should return -EFXXX ..

> +}
> +__initcall(capability_export_names);
> 

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