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iio: max31865: Use sysfs_emit() 

sysfs_emit() is preferred over raw s*printf() for sysfs attributes since it
knows about the sysfs buffer specifics and has some built-in checks for
size and alignment.

Use sysfs_emit() to format the custom ``in_filter_notch_center_frequency`
and fault_ovuv` device attributes of the max31865 driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211216185217.1054495-10-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lars-Peter Clausen 2021-12-16 19:52:13 +01:00 committed by Jonathan Cameron
parent 9df24867d8
commit 3c1d2fdd80
1 changed files with 2 additions and 2 deletions
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4
drivers/iio/temperature/max31865.c
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@ -208,7 +208,7 @@ static ssize_t show_fault(struct device *dev, u8 faultbit, char *buf)
fault = data->buf[0] & faultbit;
return sprintf(buf, "%d\n", fault);
return sysfs_emit(buf, "%d\n", fault);
}
static ssize_t show_fault_ovuv(struct device *dev,
@ -225,7 +225,7 @@ static ssize_t show_filter(struct device *dev,
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct max31865_data *data = iio_priv(indio_dev);
return sprintf(buf, "%d\n", data->filter_50hz ? 50 : 60);
return sysfs_emit(buf, "%d\n", data->filter_50hz ? 50 : 60);
}
static ssize_t set_filter(struct device *dev,