Merge tag 'v3.6-rc1-iio-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

IIO fixes for v3.6-rc1 set 2

A few simple fixes.

1)Fix up some possible divide by zero issues in various drivers.

2)Prevent a memory leak in an error path in lis3l02dq

3)Make sure the PTR_ERR call in at91_adc matches the
check for IS_ERR just above it rather than using a different
pointer.

Merges fine against v3.6rc4

7 files changed, 15 insertions, 1 deletions

diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 18d108fd967..f3da59063ed 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -121,8 +121,10 @@ static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev,
 	if (rx_array == NULL)
 		return -ENOMEM;
 	ret = lis3l02dq_read_all(indio_dev, rx_array);
-	if (ret < 0)
+	if (ret < 0) {
+		kfree(rx_array);
 		return ret;
+	}
 	for (i = 0; i < scan_count; i++)
 		data[i] = combine_8_to_16(rx_array[i*4+1],
 					rx_array[i*4+3]);
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 095837285f4..19a064d649e 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -647,6 +647,8 @@ static ssize_t ad7192_write_frequency(struct device *dev,
 	ret = strict_strtoul(buf, 10, &lval);
 	if (ret)
 		return ret;
+	if (lval == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 	if (iio_buffer_enabled(indio_dev)) {
diff --git a/drivers/staging/iio/gyro/adis16260_core.c b/drivers/staging/iio/gyro/adis16260_core.c
index 93aa431287a..eb8e9d69efd 100644
--- a/drivers/staging/iio/gyro/adis16260_core.c
+++ b/drivers/staging/iio/gyro/adis16260_core.c
@@ -195,6 +195,8 @@ static ssize_t adis16260_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 	if (spi_get_device_id(st->us)) {
diff --git a/drivers/staging/iio/imu/adis16400_core.c b/drivers/staging/iio/imu/adis16400_core.c
index 1f4c17779b5..a618327e06e 100644
--- a/drivers/staging/iio/imu/adis16400_core.c
+++ b/drivers/staging/iio/imu/adis16400_core.c
@@ -234,6 +234,8 @@ static ssize_t adis16400_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index f04ece7fbc2..3ccff189f25 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -425,6 +425,8 @@ static ssize_t ade7753_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 
diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
index 6cee28a5e87..abb1e9c8d09 100644
--- a/drivers/staging/iio/meter/ade7754.c
+++ b/drivers/staging/iio/meter/ade7754.c
@@ -445,6 +445,8 @@ static ssize_t ade7754_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index b3f7e0fa961..eb0a2a98f38 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -385,6 +385,8 @@ static ssize_t ade7759_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);