linux-kernel - Re: [PATCH v2 3/3] tpm_crb: request and relinquish locality 0

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Message-ID: <20161205163235.GA24852@obsidianresearch.com>
Date:   Mon, 5 Dec 2016 09:32:35 -0700
From:   Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     Peter Huewe <peterhuewe@....de>,
        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 v2 3/3] tpm_crb: request and relinquish locality 0

On Sat, Dec 03, 2016 at 07:52:13PM +0200, Jarkko Sakkinen wrote:
> +	iowrite32(CRB_LOC_CTRL_RELINQUISH, &priv->regs_h->loc_ctrl);

Since regs_h can be null shouldn't there be some guards ?

Jason