platform/x86: asus-wmi: Convert all attr-show to use sysfs_emit

This changes all *_show attributes in asus-wmi.c to use sysfs_emit()
instead of the older method of writing to the output buffer manually.
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220809025054.1626339-6-luke@ljones.devSigned-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/asus-wmi.c

@@ -771,7 +771,7 @@ static ssize_t charge_control_end_threshold_show(struct device *device,
 						 struct device_attribute *attr,
 						 char *buf)
 {
-	return sprintf(buf, "%d\n", charge_end_threshold);
+	return sysfs_emit(buf, "%d\n", charge_end_threshold);
 }
 
 static DEVICE_ATTR_RW(charge_control_end_threshold);
@@ -1819,7 +1819,7 @@ static ssize_t pwm1_show(struct device *dev,
 		value = -1;
 	}
 
-	return sprintf(buf, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
 
 static ssize_t pwm1_store(struct device *dev,
@@ -1879,7 +1879,7 @@ static ssize_t fan1_input_show(struct device *dev,
 		return -ENXIO;
 	}
 
-	return sprintf(buf, "%d\n", value < 0 ? -1 : value*100);
+	return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100);
 }
 
 static ssize_t pwm1_enable_show(struct device *dev,
@@ -1897,7 +1897,7 @@ static ssize_t pwm1_enable_show(struct device *dev,
 	 * in practice on X532FL at least (the bit is always 0) and there's
 	 * also nothing in the DSDT to indicate that this behaviour exists.
 	 */
-	return sprintf(buf, "%d\n", asus->fan_pwm_mode);
+	return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
 }
 
 static ssize_t pwm1_enable_store(struct device *dev,
@@ -1965,7 +1965,7 @@ static ssize_t fan1_label_show(struct device *dev,
 					  struct device_attribute *attr,
 					  char *buf)
 {
-	return sprintf(buf, "%s\n", ASUS_FAN_DESC);
+	return sysfs_emit(buf, "%s\n", ASUS_FAN_DESC);
 }
 
 static ssize_t asus_hwmon_temp1(struct device *dev,
@@ -2158,7 +2158,7 @@ static ssize_t fan_boost_mode_show(struct device *dev,
 {
 	struct asus_wmi *asus = dev_get_drvdata(dev);
 
-	return scnprintf(buf, PAGE_SIZE, "%d\n", asus->fan_boost_mode);
+	return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
 }
 
 static ssize_t fan_boost_mode_store(struct device *dev,
@@ -2711,7 +2711,7 @@ static ssize_t throttle_thermal_policy_show(struct device *dev,
 	struct asus_wmi *asus = dev_get_drvdata(dev);
 	u8 mode = asus->throttle_thermal_policy_mode;
 
-	return scnprintf(buf, PAGE_SIZE, "%d\n", mode);
+	return sysfs_emit(buf, "%d\n", mode);
 }
 
 static ssize_t throttle_thermal_policy_store(struct device *dev,