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/ad7768-1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7768-1.c b/drivers/iio/adc/ad7768-1.c index 70a25949142c..eea796a3f83c 100644 --- a/drivers/iio/adc/ad7768-1.c +++ b/drivers/iio/adc/ad7768-1.c @@ -346,7 +346,7 @@ static ssize_t ad7768_sampling_freq_avail(struct device *dev, for (i = 0; i < ARRAY_SIZE(ad7768_clk_config); i++) { freq = DIV_ROUND_CLOSEST(st->mclk_freq, ad7768_clk_config[i].clk_div); - len += scnprintf(buf + len, PAGE_SIZE - len, "%d ", freq); + len += sysfs_emit_at(buf, len, "%d ", freq); } buf[len - 1] = '\n'; -- 2.25.1