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Date:	Fri,  8 Aug 2014 13:40:06 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Peter Meerwald <pmeerw@...erw.net>,
	Oleksandr Kravchenko <o.v.kravchenko@...ballogic.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13 183/259] iio:bma180: Missing check for frequency fractional part

3.13.11.6 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Peter Meerwald <pmeerw@...erw.net>

commit 9b2a4d35a6ceaf217be61ed8eb3c16986244f640 upstream.

val2 should be zero

This will make no difference for correct inputs but will reject
incorrect ones with a decimal part in the value written to the sysfs
interface.

Signed-off-by: Peter Meerwald <pmeerw@...erw.net>
Cc: Oleksandr Kravchenko <o.v.kravchenko@...ballogic.com>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/iio/accel/bma180.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 8d5ea9b..93ff0ba 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -376,6 +376,8 @@ static int bma180_write_raw(struct iio_dev *indio_dev,
 		mutex_unlock(&data->mutex);
 		return ret;
 	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
+		if (val2)
+			return -EINVAL;
 		mutex_lock(&data->mutex);
 		ret = bma180_set_bw(data, val);
 		mutex_unlock(&data->mutex);
-- 
1.9.1

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