[PATCH] ACPI: fan: Convert to use sysfs_emit_at() API

From: ye.xingchen
Date: Tue Dec 06 2022 - 02:20:00 EST


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/acpi/fan_attr.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/fan_attr.c b/drivers/acpi/fan_attr.c
index f15157d40713..f4f6e2381f1d 100644
--- a/drivers/acpi/fan_attr.c
+++ b/drivers/acpi/fan_attr.c
@@ -27,24 +27,24 @@ static ssize_t show_state(struct device *dev, struct device_attribute *attr, cha
count = scnprintf(buf, PAGE_SIZE, "%lld:", fps->control);

if (fps->trip_point == 0xFFFFFFFF || fps->trip_point > 9)
- count += scnprintf(&buf[count], PAGE_SIZE - count, "not-defined:");
+ count += sysfs_emit_at(buf, count, "not-defined:");
else
- count += scnprintf(&buf[count], PAGE_SIZE - count, "%lld:", fps->trip_point);
+ count += sysfs_emit_at(buf, count, "%lld:", fps->trip_point);

if (fps->speed == 0xFFFFFFFF)
- count += scnprintf(&buf[count], PAGE_SIZE - count, "not-defined:");
+ count += sysfs_emit_at(buf, count, "not-defined:");
else
- count += scnprintf(&buf[count], PAGE_SIZE - count, "%lld:", fps->speed);
+ count += sysfs_emit_at(buf, count, "%lld:", fps->speed);

if (fps->noise_level == 0xFFFFFFFF)
- count += scnprintf(&buf[count], PAGE_SIZE - count, "not-defined:");
+ count += sysfs_emit_at(buf, count, "not-defined:");
else
- count += scnprintf(&buf[count], PAGE_SIZE - count, "%lld:", fps->noise_level * 100);
+ count += sysfs_emit_at(buf, count, "%lld:", fps->noise_level * 100);

if (fps->power == 0xFFFFFFFF)
- count += scnprintf(&buf[count], PAGE_SIZE - count, "not-defined\n");
+ count += sysfs_emit_at(buf, count, "not-defined\n");
else
- count += scnprintf(&buf[count], PAGE_SIZE - count, "%lld\n", fps->power);
+ count += sysfs_emit_at(buf, count, "%lld\n", fps->power);

return count;
}
--
2.25.1