linux-kernel - Re: [PATCH 2/2] tpm: replace dynamically allocated bios

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Message-ID: <20161001164932.GA13462@obsidianresearch.com>
Date:   Sat, 1 Oct 2016 10:49:32 -0600
From:   Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     Peter Huewe <peterhuewe@....de>,
        Nayna Jain <nayna@...ux.vnet.ibm.com>,
        Marcel Selhorst <tpmdd@...horst.net>,
        "moderated list:TPM DEVICE DRIVER" 
        <tpmdd-devel@...ts.sourceforge.net>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] tpm: replace dynamically allocated bios_dir with a
 static array

On Sat, Oct 01, 2016 at 03:41:17PM +0300, Jarkko Sakkinen wrote:
> -	bin_file =
> +	chip->bios_dir[cnt] =
>  	    securityfs_create_file("binary_bios_measurements",
> -				   S_IRUSR | S_IRGRP, tpm_dir,
> +				   S_IRUSR | S_IRGRP, chip->bios_dir[cnt],

That is certainly not right, Nayna's version was correct, the function
argument is the directory to create under and bios_dir[0] is setup as the
directory for tpm. This is also why removal is done in reverse order,
files are removed then the directory that contains them.

Jason