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authorLinus Torvalds <torvalds@g5.osdl.org>2006-03-23 15:51:32 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-23 15:51:32 -0800
commitb6585dedac232ca79fe978d97a95fdaa6da24f66 (patch)
tree4d2d78300bb9bcfb40cb35450f78dd3af82c78d3 /drivers/hwmon/lm90.c
parenta3ea9b584ed2acdeae817f0dc91a5880e0828a05 (diff)
parentded2b66615613093eeb83b81499bc270de8fc499 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6: (36 commits) [PATCH] hwmon: add required idr locking [PATCH] I2C: hwmon: Rename register parameters [PATCH] I2C: Drop unneeded i2c-dev.h includes [PATCH] I2C: i2c-ixp4xx: Add hwmon class [PATCH] I2C: i2c-piix4: Add Broadcom HT-1000 support [PATCH] I2C: i2c-amd756-s4882: Improve static mutex initialization [PATCH] I2C: i2c-ali1535: Drop redundant mutex [PATCH] i2c: Cleanup isp1301_omap [PATCH] i2c: Fix i2c-ite name initialization [PATCH] i2c: Drop the i2c-frodo bus driver [PATCH] i2c: Optimize core_lists mutex usage [PATCH] w83781d: Don't reset the chip by default [PATCH] w83781d: Document the alarm and beep bits [PATCH] w83627ehf: Refactor the sysfs interface [PATCH] hwmon: Support the Pentium M VID code [PATCH] hwmon: Add support for the Winbond W83687THF [PATCH] hwmon: f71805f semaphore to mutex conversions [PATCH] hwmon: Semaphore to mutex conversions [PATCH] i2c: Semaphore to mutex conversions, part 3 [PATCH] i2c: Semaphore to mutex conversions, part 2 ...
Diffstat (limited to 'drivers/hwmon/lm90.c')
-rw-r--r--drivers/hwmon/lm90.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 5679464447c..d9eeaf7585b 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -78,6 +78,7 @@
#include <linux/hwmon-sysfs.h>
#include <linux/hwmon.h>
#include <linux/err.h>
+#include <linux/mutex.h>
/*
* Addresses to scan
@@ -201,7 +202,7 @@ static struct i2c_driver lm90_driver = {
struct lm90_data {
struct i2c_client client;
struct class_device *class_dev;
- struct semaphore update_lock;
+ struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
int kind;
@@ -247,13 +248,13 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
long val = simple_strtol(buf, NULL, 10);
int nr = attr->index;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (data->kind == adt7461)
data->temp8[nr] = TEMP1_TO_REG_ADT7461(val);
else
data->temp8[nr] = TEMP1_TO_REG(val);
i2c_smbus_write_byte_data(client, reg[nr - 1], data->temp8[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -281,7 +282,7 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
long val = simple_strtol(buf, NULL, 10);
int nr = attr->index;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (data->kind == adt7461)
data->temp11[nr] = TEMP2_TO_REG_ADT7461(val);
else
@@ -290,7 +291,7 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
data->temp11[nr] >> 8);
i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
data->temp11[nr] & 0xff);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -311,11 +312,11 @@ static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy,
long val = simple_strtol(buf, NULL, 10);
long hyst;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
hyst = TEMP1_FROM_REG(data->temp8[3]) - val;
i2c_smbus_write_byte_data(client, LM90_REG_W_TCRIT_HYST,
HYST_TO_REG(hyst));
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -558,7 +559,7 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
strlcpy(new_client->name, name, I2C_NAME_SIZE);
data->valid = 0;
data->kind = kind;
- 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)))
@@ -646,7 +647,7 @@ static struct lm90_data *lm90_update_device(struct device *dev)
struct i2c_client *client = to_i2c_client(dev);
struct lm90_data *data = i2c_get_clientdata(client);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
u8 oldh, newh, l;
@@ -692,7 +693,7 @@ static struct lm90_data *lm90_update_device(struct device *dev)
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}