linux-kernel - Re: [PATCH] io: accel: kxcjk-1013: Fix iio_event

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Date:	Tue, 04 Nov 2014 07:58:29 +0000
From:	Jonathan Cameron <jic23@...nel.org>
To:	Daniel Baluta <daniel.baluta@...el.com>
CC:	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
	srinivas.pandruvada@...ux.intel.com
Subject: Re: [PATCH] io: accel: kxcjk-1013: Fix iio_event_spec direction

On 18/10/14 12:57, Jonathan Cameron wrote:
> On 10/10/14 15:53, Daniel Baluta wrote:
>> Because IIO_EV_DIR_* are not bitmasks but enums,
>> IIO_EV_DIR_RISING | IIO_EV_DIR_FALLING is not equal
>> with IIO_EV_DIR_EITHER.
>>
>> This could lead to potential misformatted sysfs attributes
>> like:
>> 	* in_accel_x_thresh_(null)_en
>> 	* in_accel_x_thresh_(null)_period
>> 	* in_accel_x_thresh_(null)_value
>>
>> or even memory corruption.
>>
>> Fixes: b4b491c083 (iio: accel: kxcjk-1013: Support threshold)
>> Signed-off-by: Daniel Baluta <daniel.baluta@...el.com>
> 
> Good catch.  I'll have to hold this for a little until Greg takes
> my last pull request and I can bring the fixes branch up past the
> merge window.
Applied to the fixes-togreg branch of iio.git
Sorry for the delay,

Jonathan
> 
> 
>> ---
>>  drivers/iio/accel/kxcjk-1013.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
>> index 98909a9..a23e58c 100644
>> --- a/drivers/iio/accel/kxcjk-1013.c
>> +++ b/drivers/iio/accel/kxcjk-1013.c
>> @@ -894,7 +894,7 @@ static const struct attribute_group kxcjk1013_attrs_group = {
>>  
>>  static const struct iio_event_spec kxcjk1013_event = {
>>  		.type = IIO_EV_TYPE_THRESH,
>> -		.dir = IIO_EV_DIR_RISING | IIO_EV_DIR_FALLING,
>> +		.dir = IIO_EV_DIR_EITHER,
>>  		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
>>  				 BIT(IIO_EV_INFO_ENABLE) |
>>  				 BIT(IIO_EV_INFO_PERIOD)
>>
> --
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