linux-kernel - Re: [PATCH 3/6] integrity: IMA display

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Message-ID: <alpine.LRH.1.10.0901302013200.31987@tundra.namei.org>
Date:	Fri, 30 Jan 2009 20:18:34 +1100 (EST)
From:	James Morris <jmorris@...ei.org>
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@...radead.org>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	"<David Safford" <safford@...son.ibm.com>,
	Serge Hallyn <serue@...ibm.com>, Mimi Zohar <zohar@...ibm.com>
Subject: Re: [PATCH 3/6] integrity: IMA display

On Thu, 29 Jan 2009, Mimi Zohar wrote:

> +int ima_fs_init(void)
> +{
> +	ima_dir = securityfs_create_dir("ima", NULL);
> +	if (!ima_dir || IS_ERR(ima_dir))
> +		return -1;
> +
> +	binary_runtime_measurements =
> +	    securityfs_create_file("binary_runtime_measurements",
> +				   S_IRUSR | S_IRGRP, ima_dir, NULL,
> +				   &ima_measurements_ops);
> +	if (!binary_runtime_measurements || IS_ERR(binary_runtime_measurements))
> +		goto out;

You should not be checking for NULL returns from securityfs_create_file(), 
because it does not return NULL (the documentation is wrong).


- James
-- 
James Morris
<jmorris@...ei.org>
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