linux-kernel - Re: [PATCH 1/2] xen-tpmfront: Use common error handling code in vtpm

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Message-ID: <20171024135622.uswu3apuj23njbna@linux.intel.com>
Date:   Tue, 24 Oct 2017 15:56:22 +0200
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:     linux-integrity@...r.kernel.org,
        Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
        Peter Hüwe <PeterHuewe@....de>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 1/2] xen-tpmfront: Use common error handling code in
 vtpm_send()

On Mon, Oct 23, 2017 at 03:57:30PM +0200, SF Markus Elfring wrote:
> >> @@ -108,11 +106,14 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
> >>  	if (wait_for_tpm_stat(chip, VTPM_STATUS_IDLE, duration,
> >>  			&priv->read_queue, true) < 0) {
> >>  		/* got a signal or timeout, try to cancel */
> >> -		vtpm_cancel(chip);
> >> -		return -ETIME;
> >> +		goto cancel_vtpm;
> >>  	}
> >>  
> >>  	return count;
> >> +
> >> +cancel_vtpm:
> >> +	vtpm_cancel(chip);
> >> +	return -ETIME;
> >>  }
> >>  
> >>  static int vtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
> >> -- 
> >> 2.14.2
> >>
> > 
> > NAK
> 
> Do you need any more facts to show the influence of the proposed small code reduction?
> 
> Regards,
> Markus

Already explained when I reviewed another patch dealing with
-ETIME.

/Jarkko