Re: [patch] iio:gyro: adis16136: divide by zero in write_frequency()

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On 11/27/2012 06:40 PM, Lars-Peter Clausen wrote:
> On 11/27/2012 08:24 AM, Dan Carpenter wrote:
>> It's slightly cleaner to use kstrtouint() because we pass unsigned ints
>> to adis16136_set_freq().  On 64 bit systems, if the user passed LONG_MIN
>> then it we would get past the test against zero but crash in
>> adis16136_set_freq() because we truncate the high bits away.
>>
>>
> 
> Thanks,
> 
> Acked-By: Lars-Peter Clausen <lars@xxxxxxxxxx>
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Added to togreg branch of

git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git

>>
>> diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c
>> index 05486df..b4ee339 100644
>> --- a/drivers/iio/gyro/adis16136.c
>> +++ b/drivers/iio/gyro/adis16136.c
>> @@ -203,10 +203,10 @@ static ssize_t adis16136_write_frequency(struct device *dev,
>>  {
>>  	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
>>  	struct adis16136 *adis16136 = iio_priv(indio_dev);
>> -	long val;
>> +	unsigned int val;
>>  	int ret;
>>  
>> -	ret = kstrtol(buf, 10, &val);
>> +	ret = kstrtouint(buf, 10, &val);
>>  	if (ret)
>>  		return ret;
>>  
>> --
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