hwmon: replace snprintf in show functions with sysfs_emit

coccicheck complains about the use of snprintf() in sysfs
show functions.

drivers/hwmon/ina3221.c:701:8-16: WARNING: use scnprintf or sprintf

This results in a large number of patch submissions. Fix it all in
one go using the following coccinelle rules. Use sysfs_emit instead
of scnprintf or sprintf since that makes more sense.

@depends on patch@
identifier show, dev, attr, buf;
@@

ssize_t show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
  return
-		snprintf(buf, \( PAGE_SIZE \| PAGE_SIZE - 1 \),
+		sysfs_emit(buf,
		...);
	...>
}

@depends on patch@
identifier show, dev, attr, buf, rc;
@@

ssize_t show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
  rc =
-		snprintf(buf, \( PAGE_SIZE \| PAGE_SIZE - 1 \),
+		sysfs_emit(buf,
		...);
	...>
}

While at it, remove unnecessary braces and as well as unnecessary
else after return statements to address checkpatch warnings in the
resulting patch.

Cc: Zihao Tang <tangzihao1@hisilicon.com>
Cc: Jay Fang <f.fangjian@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 10 insertions, 10 deletions

diff --git a/drivers/hwmon/sch5636.c b/drivers/hwmon/sch5636.c
index 200bb2bfc986..5683a38740f6 100644
--- a/drivers/hwmon/sch5636.c
+++ b/drivers/hwmon/sch5636.c
@@ -160,7 +160,7 @@ static int reg_to_rpm(u16 reg)
 static ssize_t name_show(struct device *dev, struct device_attribute *devattr,
 			 char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%s\n", DEVNAME);
+	return sysfs_emit(buf, "%s\n", DEVNAME);
 }
 
 static ssize_t in_value_show(struct device *dev,
@@ -176,7 +176,7 @@ static ssize_t in_value_show(struct device *dev,
 	val = DIV_ROUND_CLOSEST(
 		data->in[attr->index] * SCH5636_REG_IN_FACTORS[attr->index],
 		255);
-	return snprintf(buf, PAGE_SIZE, "%d\n", val);
+	return sysfs_emit(buf, "%d\n", val);
 }
 
 static ssize_t in_label_show(struct device *dev,
@@ -184,8 +184,8 @@ static ssize_t in_label_show(struct device *dev,
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-			SCH5636_IN_LABELS[attr->index]);
+	return sysfs_emit(buf, "%s\n",
+			  SCH5636_IN_LABELS[attr->index]);
 }
 
 static ssize_t temp_value_show(struct device *dev,
@@ -199,7 +199,7 @@ static ssize_t temp_value_show(struct device *dev,
 		return PTR_ERR(data);
 
 	val = (data->temp_val[attr->index] - 64) * 1000;
-	return snprintf(buf, PAGE_SIZE, "%d\n", val);
+	return sysfs_emit(buf, "%d\n", val);
 }
 
 static ssize_t temp_fault_show(struct device *dev,
@@ -213,7 +213,7 @@ static ssize_t temp_fault_show(struct device *dev,
 		return PTR_ERR(data);
 
 	val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_WORKING) ? 0 : 1;
-	return snprintf(buf, PAGE_SIZE, "%d\n", val);
+	return sysfs_emit(buf, "%d\n", val);
 }
 
 static ssize_t temp_alarm_show(struct device *dev,
@@ -227,7 +227,7 @@ static ssize_t temp_alarm_show(struct device *dev,
 		return PTR_ERR(data);
 
 	val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_ALARM) ? 1 : 0;
-	return snprintf(buf, PAGE_SIZE, "%d\n", val);
+	return sysfs_emit(buf, "%d\n", val);
 }
 
 static ssize_t fan_value_show(struct device *dev,
@@ -244,7 +244,7 @@ static ssize_t fan_value_show(struct device *dev,
 	if (val < 0)
 		return val;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", val);
+	return sysfs_emit(buf, "%d\n", val);
 }
 
 static ssize_t fan_fault_show(struct device *dev,
@@ -258,7 +258,7 @@ static ssize_t fan_fault_show(struct device *dev,
 		return PTR_ERR(data);
 
 	val = (data->fan_ctrl[attr->index] & SCH5636_FAN_NOT_PRESENT) ? 1 : 0;
-	return snprintf(buf, PAGE_SIZE, "%d\n", val);
+	return sysfs_emit(buf, "%d\n", val);
 }
 
 static ssize_t fan_alarm_show(struct device *dev,
@@ -272,7 +272,7 @@ static ssize_t fan_alarm_show(struct device *dev,
 		return PTR_ERR(data);
 
 	val = (data->fan_ctrl[attr->index] & SCH5636_FAN_ALARM) ? 1 : 0;
-	return snprintf(buf, PAGE_SIZE, "%d\n", val);
+	return sysfs_emit(buf, "%d\n", val);
 }
 
 static struct sensor_device_attribute sch5636_attr[] = {