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Subject: Re: [PATCH] staging: iio: cdc: ad7746: Fix unnecessary check
 andassignment in ad7746_probe()
To:     Dan Carpenter <dan.carpenter@oracle.com>
Cc:     lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org,
        knaack.h@gmx.de, pmeerw@pmeerw.net, gregkh@linuxfoundation.org,
        linux-iio@vger.kernel.org, devel@driverdev.osuosl.org,
        linux-kernel@vger.kernel.org
References: <20210517150006.8436-1-tangbin@cmss.chinamobile.com>
 <20210518075254.GN1955@kadam>
From:   tangbin <tangbin@cmss.chinamobile.com>
Message-ID: <dfb7d829-94e6-2051-8795-79402160afdb@cmss.chinamobile.com>
Date:   Tue, 18 May 2021 17:27:07 +0800
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Hi Dan：

On 2021/5/18 15:52, Dan Carpenter wrote:
> On Mon, May 17, 2021 at 11:00:06PM +0800, Tang Bin wrote:
>> @@ -730,11 +730,7 @@ static int ad7746_probe(struct i2c_client *client,
>>   	if (ret < 0)
>>   		return ret;
>>   
>> -	ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev);
>> -	if (ret)
>> -		return ret;
>> -
>> -	return 0;
>> +	return devm_iio_device_register(indio_dev->dev.parent, indio_dev);
>>   }
> This sort of thing is done deliberately as a style choice...  I probably
> wouldn't have written it that way myself, but there really isn't a
> downside to leaving it as-is.
>
> The unused "int ret = 0;" just introduces a static checker warning about
> unused assignments and disables the static checker warning for
> uninitialized variables so we want to remove that.
>
Got it, I will send this patch for you.

Thanks

Tang Bin