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path: root/drivers/hwmon/ultra45_env.c
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Diffstat (limited to 'drivers/hwmon/ultra45_env.c')
-rw-r--r--drivers/hwmon/ultra45_env.c48
1 files changed, 30 insertions, 18 deletions
diff --git a/drivers/hwmon/ultra45_env.c b/drivers/hwmon/ultra45_env.c
index b9a87e89bab..7d465863606 100644
--- a/drivers/hwmon/ultra45_env.c
+++ b/drivers/hwmon/ultra45_env.c
@@ -1,4 +1,5 @@
-/* ultra45_env.c: Driver for Ultra45 PIC16F747 environmental monitor.
+/*
+ * ultra45_env.c: Driver for Ultra45 PIC16F747 environmental monitor.
*
* Copyright (C) 2008 David S. Miller <davem@davemloft.net>
*/
@@ -11,6 +12,7 @@
#include <linux/io.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
#define DRV_MODULE_VERSION "0.1"
@@ -82,7 +84,8 @@ static void env_write(struct env *p, u8 ireg, u8 val)
spin_unlock(&p->lock);
}
-/* There seems to be a adr7462 providing these values, thus a lot
+/*
+ * There seems to be a adr7462 providing these values, thus a lot
* of these calculations are borrowed from the adt7470 driver.
*/
#define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x))
@@ -90,7 +93,8 @@ static void env_write(struct env *p, u8 ireg, u8 val)
#define FAN_PERIOD_INVALID (0xff << 8)
#define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID)
-static ssize_t show_fan_speed(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_fan_speed(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
int fan_nr = to_sensor_dev_attr(attr)->index;
struct env *p = dev_get_drvdata(dev);
@@ -111,10 +115,15 @@ static ssize_t set_fan_speed(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int fan_nr = to_sensor_dev_attr(attr)->index;
- int rpm = simple_strtol(buf, NULL, 10);
+ unsigned long rpm;
struct env *p = dev_get_drvdata(dev);
int period;
u8 val;
+ int err;
+
+ err = kstrtoul(buf, 10, &rpm);
+ if (err)
+ return err;
if (!rpm)
return -EINVAL;
@@ -126,7 +135,8 @@ static ssize_t set_fan_speed(struct device *dev, struct device_attribute *attr,
return count;
}
-static ssize_t show_fan_fault(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_fan_fault(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
int fan_nr = to_sensor_dev_attr(attr)->index;
struct env *p = dev_get_drvdata(dev);
@@ -148,7 +158,8 @@ fan(4);
static SENSOR_DEVICE_ATTR(psu_fan_fault, S_IRUGO, show_fan_fault, NULL, 6);
-static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
int temp_nr = to_sensor_dev_attr(attr)->index;
struct env *p = dev_get_drvdata(dev);
@@ -168,7 +179,8 @@ static SENSOR_DEVICE_ATTR(lsi1064_local_temp, S_IRUGO, show_temp, NULL, 6);
static SENSOR_DEVICE_ATTR(front_panel_temp, S_IRUGO, show_temp, NULL, 7);
static SENSOR_DEVICE_ATTR(psu_temp, S_IRUGO, show_temp, NULL, 13);
-static ssize_t show_stat_bit(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_stat_bit(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
int index = to_sensor_dev_attr(attr)->index;
struct env *p = dev_get_drvdata(dev);
@@ -181,9 +193,11 @@ static ssize_t show_stat_bit(struct device *dev, struct device_attribute *attr,
static SENSOR_DEVICE_ATTR(fan_failure, S_IRUGO, show_stat_bit, NULL, 0);
static SENSOR_DEVICE_ATTR(env_bus_busy, S_IRUGO, show_stat_bit, NULL, 1);
static SENSOR_DEVICE_ATTR(env_data_stale, S_IRUGO, show_stat_bit, NULL, 2);
-static SENSOR_DEVICE_ATTR(tpm_self_test_passed, S_IRUGO, show_stat_bit, NULL, 3);
+static SENSOR_DEVICE_ATTR(tpm_self_test_passed, S_IRUGO, show_stat_bit, NULL,
+ 3);
-static ssize_t show_fwver(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_fwver(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct env *p = dev_get_drvdata(dev);
u8 val;
@@ -194,7 +208,8 @@ static ssize_t show_fwver(struct device *dev, struct device_attribute *attr, cha
static SENSOR_DEVICE_ATTR(firmware_version, S_IRUGO, show_fwver, NULL, 0);
-static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_name(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
return sprintf(buf, "ultra45\n");
}
@@ -235,9 +250,9 @@ static const struct attribute_group env_group = {
.attrs = env_attributes,
};
-static int __devinit env_probe(struct platform_device *op)
+static int env_probe(struct platform_device *op)
{
- struct env *p = kzalloc(sizeof(*p), GFP_KERNEL);
+ struct env *p = devm_kzalloc(&op->dev, sizeof(*p), GFP_KERNEL);
int err = -ENOMEM;
if (!p)
@@ -247,7 +262,7 @@ static int __devinit env_probe(struct platform_device *op)
p->regs = of_ioremap(&op->resource[0], 0, REG_SIZE, "pic16f747");
if (!p->regs)
- goto out_free;
+ goto out;
err = sysfs_create_group(&op->dev.kobj, &env_group);
if (err)
@@ -271,12 +286,10 @@ out_sysfs_remove_group:
out_iounmap:
of_iounmap(&op->resource[0], p->regs, REG_SIZE);
-out_free:
- kfree(p);
goto out;
}
-static int __devexit env_remove(struct platform_device *op)
+static int env_remove(struct platform_device *op)
{
struct env *p = platform_get_drvdata(op);
@@ -284,7 +297,6 @@ static int __devexit env_remove(struct platform_device *op)
sysfs_remove_group(&op->dev.kobj, &env_group);
hwmon_device_unregister(p->hwmon_dev);
of_iounmap(&op->resource[0], p->regs, REG_SIZE);
- kfree(p);
}
return 0;
@@ -306,7 +318,7 @@ static struct platform_driver env_driver = {
.of_match_table = env_match,
},
.probe = env_probe,
- .remove = __devexit_p(env_remove),
+ .remove = env_remove,
};
module_platform_driver(env_driver);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 11:51:10 +0000