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iio: max9611: Use sysfs_emit()

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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_power_shunt_resistor` and
`in_current_shunt_resistor` device attributes of the max9611 driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Link: https://lore.kernel.org/r/20211216185217.1054495-11-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lars-Peter Clausen 2021-12-16 19:52:14 +01:00 committed by Jonathan Cameron
parent 3c1d2fdd80
commit d42b626d54
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/adc/max9611.c
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@ -429,7 +429,7 @@ static ssize_t max9611_shunt_resistor_show(struct device *dev,
i = max9611->shunt_resistor_uohm / 1000000;
r = max9611->shunt_resistor_uohm % 1000000;
return sprintf(buf, "%u.%06u\n", i, r);
return sysfs_emit(buf, "%u.%06u\n", i, r);
}
static IIO_DEVICE_ATTR(in_power_shunt_resistor, 0444,