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staging:iio:adc:ad7192: return len and fix out of range checking 

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Michael Hennerich 2011-09-02 17:25:46 +01:00 committed by Greg Kroah-Hartman
parent e68b1db1b5
commit a3ef65d322
1 changed files with 7 additions and 3 deletions
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10
drivers/staging/iio/adc/ad7291.c
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@ -241,10 +241,14 @@ static inline ssize_t ad7291_set_hyst(struct device *dev,
if (ret < 0)
return ret;
if (data < 4096)
if (data > AD7291_VALUE_MASK)
return -EINVAL;
return ad7291_i2c_write(chip, this_attr->address, data);
ret = ad7291_i2c_write(chip, this_attr->address, data);
if (ret < 0)
return ret;
return len;
}
static IIO_DEVICE_ATTR(in_temp0_thresh_both_hyst_raw,
@ -352,7 +356,7 @@ static int ad7291_write_event_value(struct iio_dev *indio_dev,
switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
case IIO_VOLTAGE:
if (val > 0xFFF || val < 0)
if (val > AD7291_VALUE_MASK || val < 0)
return -EINVAL;
reg = ad7291_limit_regs[IIO_EVENT_CODE_EXTRACT_NUM(event_code)]
[!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==