#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/err.h>
+#include <linux/mutex.h>
/* Addresses to scan */
struct class_device *class_dev;
enum chips type;
- struct semaphore update_lock;
+ struct mutex update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
static struct adm1021_data *adm1021_update_device(struct device *dev);
/* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */
-static int read_only = 0;
+static int read_only;
/* This is the driver that will be inserted */
static struct i2c_driver adm1021_driver = {
- .owner = THIS_MODULE,
- .name = "adm1021",
+ .driver = {
+ .name = "adm1021",
+ },
.id = I2C_DRIVERID_ADM1021,
- .flags = I2C_DF_NOTIFY,
.attach_adapter = adm1021_attach_adapter,
.detach_client = adm1021_detach_client,
};
struct adm1021_data *data = i2c_get_clientdata(client); \
int temp = simple_strtoul(buf, NULL, 10); \
\
- down(&data->update_lock); \
+ mutex_lock(&data->update_lock); \
data->value = TEMP_TO_REG(temp); \
adm1021_write_value(client, reg, data->value); \
- up(&data->update_lock); \
+ mutex_unlock(&data->update_lock); \
return count; \
}
set(temp_max, ADM1021_REG_TOS_W);
client structure, even though we cannot fill it completely yet.
But it allows us to access adm1021_{read,write}_value. */
- if (!(data = kmalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
+ if (!(data = kzalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
err = -ENOMEM;
goto error0;
}
- memset(data, 0, sizeof(struct adm1021_data));
new_client = &data->client;
i2c_set_clientdata(new_client, data);
strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
data->type = kind;
data->valid = 0;
- init_MUTEX(&data->update_lock);
+ mutex_init(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
struct i2c_client *client = to_i2c_client(dev);
struct adm1021_data *data = i2c_get_clientdata(client);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}