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 <[email protected]>
Cc: Jay Fang <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
diff --git a/drivers/hwmon/sch5636.c b/drivers/hwmon/sch5636.c
index 200bb2b..5683a38 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[] = {
