From: ye xingchen <ye.xingchen@xxxxxxxxxx> Follow the advice of the Documentation/filesystems/sysfs.rst and show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: ye xingchen <ye.xingchen@xxxxxxxxxx> --- drivers/iio/adc/adi-axi-adc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c index e8a8ea4140f1..20a6e7463552 100644 --- a/drivers/iio/adc/adi-axi-adc.c +++ b/drivers/iio/adc/adi-axi-adc.c @@ -240,8 +240,7 @@ static ssize_t in_voltage_scale_available_show(struct device *dev, for (i = 0; i < conv->chip_info->num_scales; i++) { const unsigned int *s = conv->chip_info->scale_table[i]; - len += scnprintf(buf + len, PAGE_SIZE - len, - "%u.%06u ", s[0], s[1]); + len += sysfs_emit_at(buf, len, "%u.%06u ", s[0], s[1]); } buf[len - 1] = '\n'; -- 2.25.1