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From: Joe Perches <joe@perches.com>
To: "Peter Hüwe" <PeterHuewe@gmx.de>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>,
	tpmdd-devel@lists.sourceforge.net,
	Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
	christophe.ricard@gmail.com, josh.triplett@intel.com,
	linux-api@vger.kernel.org, Ashley Lai <ashley@ashleylai.com>,
	linux-kernel@vger.kernel.org,
	jason.gunthorpe@obsidianresearch.com,
	trousers-tech@lists.sourceforge.net
Subject: Re: [tpmdd-devel] [PATCH v8 0/8] TPM 2.0 support
Date: Tue, 02 Dec 2014 15:48:35 -0800	[thread overview]
Message-ID: <1417564115.2902.8.camel@perches.com> (raw)
In-Reply-To: <201412030033.56705.PeterHuewe@gmx.de>

On Wed, 2014-12-03 at 00:33 +0100, Peter Hüwe wrote:
> Am Mittwoch, 3. Dezember 2014, 00:24:43 schrieb Aaro Koskinen:
> > On Wed, Dec 03, 2014 at 12:21:07AM +0100, Peter Hüwe wrote:
> > > --- a/drivers/char/tpm/tpm_i2c_nuvoton.c
> > > +++ b/drivers/char/tpm/tpm_i2c_nuvoton.c
> > > @@ -605,10 +605,8 @@ static int i2c_nuvoton_probe(struct i2c_client
> > > *client,
> > > 
> > >  		return -ENODEV;
> > >  	
> > >  	rc = tpm_chip_register(chip);
> > > 
> > > -	if (rc)
> > > -		return rc;
> > > 
> > > -	return 0;
> > > +	return rc;
> > 
> > Maybe just return tpm_chip_register(chip)?
> 
> Even better.

The pattern:

	foo = bar();
	if (foo)
		return foo;

	return 0;

is fairly common.

There are a few hundred in the kernel.

$ grep-2.5.4 -nrP --include=*.[ch] "\b(\w+)\s*=\s*[^;]*;\s*if\s*\(\s*\1\s*\)\s*return\s*\1\s*;\s*return\s*0;" * | \
  grep -oP '^.+:\d+:' | \
  wc -l
308



  reply	other threads:[~2014-12-02 23:48 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-02 22:31 Jarkko Sakkinen
2014-12-02 22:31 ` [PATCH v8 1/8] tpm: merge duplicate transmit_cmd() functions Jarkko Sakkinen
2014-12-02 22:31 ` [PATCH v8 2/8] tpm: two-phase chip management functions Jarkko Sakkinen
2014-12-02 22:31 ` [PATCH v8 3/8] tpm: fix raciness of PPI interface lookup Jarkko Sakkinen
2014-12-02 22:31 ` [PATCH v8 4/8] tpm: rename chip->dev to chip->pdev Jarkko Sakkinen
2014-12-02 22:31 ` [PATCH v8 5/8] tpm: device class for tpm Jarkko Sakkinen
2014-12-02 22:31 ` [PATCH v8 6/8] tpm: TPM 2.0 baseline support Jarkko Sakkinen
2014-12-03  2:21   ` [tpmdd-devel] " Stefan Berger
2014-12-03  2:28   ` Stefan Berger
2014-12-04 23:13     ` Peter Hüwe
2014-12-08 13:56       ` Jarkko Sakkinen
2014-12-08 16:18         ` peterhuewe
2014-12-02 22:31 ` [PATCH v8 7/8] tpm: TPM 2.0 CRB Interface Jarkko Sakkinen
2014-12-02 23:07   ` [tpmdd-devel] " Stefan Berger
2014-12-02 23:10   ` Peter Hüwe
2014-12-02 22:31 ` [PATCH v8 8/8] tpm: TPM 2.0 FIFO Interface Jarkko Sakkinen
2014-12-02 22:55 ` [PATCH v8 0/8] TPM 2.0 support Peter Hüwe
2014-12-03 10:10   ` Jarkko Sakkinen
2014-12-02 23:16 ` Peter Hüwe
2014-12-02 23:21   ` [tpmdd-devel] " Peter Hüwe
2014-12-02 23:24     ` Aaro Koskinen
2014-12-02 23:33       ` Peter Hüwe
2014-12-02 23:48         ` Joe Perches [this message]
2014-12-03  0:03     ` Thomas Gleixner
2014-12-04  5:52   ` Jarkko Sakkinen

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