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staging:iio:adxrs450: Reject out of range calibscale values
author
Lars-Peter Clausen
<lars@metafoo.de>
Thu, 31 Jan 2013 14:27:00 +0000
(14:27 +0000)
committer
Jonathan Cameron
<jic23@kernel.org>
Sat, 2 Feb 2013 09:21:36 +0000
(09:21 +0000)
Instead of silently discarding the upper bits reject out of range values for the
calibscale property.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
drivers/staging/iio/gyro/adxrs450_core.c
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diff --git
a/drivers/staging/iio/gyro/adxrs450_core.c
b/drivers/staging/iio/gyro/adxrs450_core.c
index
4c462d3
..
96e5284
100644
(file)
--- a/
drivers/staging/iio/gyro/adxrs450_core.c
+++ b/
drivers/staging/iio/gyro/adxrs450_core.c
@@
-258,9
+258,10
@@
static int adxrs450_write_raw(struct iio_dev *indio_dev,
int ret;
switch (mask) {
case IIO_CHAN_INFO_CALIBBIAS:
+ if (val < -0x400 || val >= 0x400)
+ return -EINVAL;
ret = adxrs450_spi_write_reg_16(indio_dev,
- ADXRS450_DNC1,
- val & 0x3FF);
+ ADXRS450_DNC1, val);
break;
default:
ret = -EINVAL;