linux-kernel - RE: [PATCH] tpm: tpm_try_transmit() refactor error flow.

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Date:   Wed, 24 Oct 2018 11:59:34 +0300 (EEST)
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     "Winkler, Tomas" <tomas.winkler@...el.com>
cc:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Nayna Jain <nayna@...ux.vnet.ibm.com>,
        "Usyskin, Alexander" <alexander.usyskin@...el.com>,
        "Struk, Tadeusz" <tadeusz.struk@...el.com>,
        "linux-integrity@...r.kernel.org" <linux-integrity@...r.kernel.org>,
        "linux-security-module@...r.kernel.org" 
        <linux-security-module@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: RE: [PATCH] tpm: tpm_try_transmit() refactor error flow.

On Tue, 23 Oct 2018, Winkler, Tomas wrote:
> To  the  out  label we jump after we are  done with locality and cmd
> read() before we jump to locality 'locality'.  We will need to add
> another variable to check If cmd_ready() was called or not in order to
> get rid of the extran label, it's not internally tracked so far.

I think this is fine.

Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>

I tested this by assigning rc error code instead of requesting locality
in addition of testig unchanged code.

/Jarkko