linux-kernel - Re: [PATCH 2/5] ARM: mxs-lradc: Simplify mxs_lradc_trigger

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Message-ID: <CAP9ODKqOEd_002KJ3xFQ0uQfNEoZosrD9UGPQ=rLS0W3N77XwQ@mail.gmail.com>
Date:	Mon, 15 Jul 2013 11:38:28 -0300
From:	Otavio Salvador <otavio@...ystems.com.br>
To:	Marek Vasut <marek.vasut@...il.com>
Cc:	Jonathan Cameron <jic23@...nel.org>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Jonathan Cameron <jic23@....ac.uk>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Bill Pemberton <wfp5p@...ginia.edu>,
	Lars-Peter Clausen <lars@...afoo.de>,
	linux-iio@...r.kernel.org, devel@...verdev.osuosl.org
Subject: Re: [PATCH 2/5] ARM: mxs-lradc: Simplify mxs_lradc_trigger_init error handle

On Mon, Jul 15, 2013 at 11:24 AM, Marek Vasut <marek.vasut@...il.com> wrote:
> Dear Otavio Salvador,
>
>> As we have a 'ret' variable with the iio_trigger_register return, this
>> can be used as result.
>>
>> Signed-off-by: Otavio Salvador <otavio@...ystems.com.br>
>> ---
>>  drivers/staging/iio/adc/mxs-lradc.c | 6 ++----
>>  1 file changed, 2 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/staging/iio/adc/mxs-lradc.c
>> b/drivers/staging/iio/adc/mxs-lradc.c index d92c97a..6d41846 100644
>> --- a/drivers/staging/iio/adc/mxs-lradc.c
>> +++ b/drivers/staging/iio/adc/mxs-lradc.c
>> @@ -671,14 +671,12 @@ static int mxs_lradc_trigger_init(struct iio_dev
>> *iio) trig->ops = &mxs_lradc_trigger_ops;
>>
>>       ret = iio_trigger_register(trig);
>> -     if (ret) {
>> +     if (ret)
>>               iio_trigger_free(trig);
>> -             return ret;
>> -     }
>>
>>       iio->trig = trig;
>
>
> You are still setting iio->trig , you dont want to do that in case of failure

In this case it'd end being NULL I think, wouldn't it?

--
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://projetos.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750
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