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hwmon: Fix off-by-one kind values 

Recent changes on the I2C front have left off-by-one array indexes in
3 hwmon drivers. Fix them.

Faulty commit:
e5e9f44c2 i2c: Drop I2C_CLIENT_INSMOD_2 to 8

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Andre Prendel <andre.prendel@gmx.de>
Cc: stable@kernel.org
This commit is contained in:
Jean Delvare 2010-03-05 22:17:26 +01:00
parent a44908d742
commit dc71afe5ac
3 changed files with 11 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/hwmon/fschmd.c
View File

@ -267,7 +267,7 @@ struct fschmd_data {
struct list_head list; /* member of the watchdog_data_list */
struct kref kref;
struct miscdevice watchdog_miscdev;
int kind;
enum chips kind;
unsigned long watchdog_is_open;
char watchdog_expect_close;
char watchdog_name[10]; /* must be unique to avoid sysfs conflict */
@ -325,8 +325,7 @@ static ssize_t show_in_value(struct device *dev,
int index = to_sensor_dev_attr(devattr)->index;
struct fschmd_data *data = fschmd_update_device(dev);
/* fscher / fschrc - 1 as data->kind is an array index, not a chips */
if (data->kind == (fscher - 1) || data->kind >= (fschrc - 1))
if (data->kind == fscher || data->kind >= fschrc)
return sprintf(buf, "%d\n", (data->volt[index] * dmi_vref *
dmi_mult[index]) / 255 + dmi_offset[index]);
else
@ -492,7 +491,7 @@ static ssize_t show_pwm_auto_point1_pwm(struct device *dev,
int val = data->fan_min[index];
/* 0 = allow turning off (except on the syl), 1-255 = 50-100% */
if (val || data->kind == fscsyl - 1)
if (val || data->kind == fscsyl)
val = val / 2 + 128;
return sprintf(buf, "%d\n", val);
@ -506,7 +505,7 @@ static ssize_t store_pwm_auto_point1_pwm(struct device *dev,
unsigned long v = simple_strtoul(buf, NULL, 10);
/* reg: 0 = allow turning off (except on the syl), 1-255 = 50-100% */
if (v || data->kind == fscsyl - 1) {
if (v || data->kind == fscsyl) {
v = SENSORS_LIMIT(v, 128, 255);
v = (v - 128) * 2 + 1;
}
@ -1037,7 +1036,7 @@ static int fschmd_detect(struct i2c_client *client,
else
return -ENODEV;
strlcpy(info->type, fschmd_id[kind - 1].name, I2C_NAME_SIZE);
strlcpy(info->type, fschmd_id[kind].name, I2C_NAME_SIZE);
return 0;
}
@ -1065,6 +1064,7 @@ static int fschmd_probe(struct i2c_client *client,
(where the client is found through a data ptr instead of the
otherway around) */
data->client = client;
data->kind = kind;
if (kind == fscpos) {
/* The Poseidon has hardwired temp limits, fill these
@ -1085,9 +1085,6 @@ static int fschmd_probe(struct i2c_client *client,
}
}
/* i2c kind goes from 1-6, we want from 0-5 to address arrays */
data->kind = kind - 1;
/* Read in some never changing registers */
data->revision = i2c_smbus_read_byte_data(client, FSCHMD_REG_REVISION);
data->global_control = i2c_smbus_read_byte_data(client,

7
drivers/hwmon/tmp401.c
View File

@ -134,7 +134,7 @@ struct tmp401_data {
struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
int kind;
enum chips kind;
/* register values */
u8 status;
@ -524,7 +524,7 @@ static int tmp401_detect(struct i2c_client *client,
if (reg > 15)
return -ENODEV;
strlcpy(info->type, tmp401_id[kind - 1].name, I2C_NAME_SIZE);
strlcpy(info->type, tmp401_id[kind].name, I2C_NAME_SIZE);
return 0;
}
@ -572,8 +572,7 @@ static int tmp401_probe(struct i2c_client *client,
goto exit_remove;
}
dev_info(&client->dev, "Detected TI %s chip\n",
names[data->kind - 1]);
dev_info(&client->dev, "Detected TI %s chip\n", names[data->kind]);
return 0;

4
drivers/hwmon/tmp421.c
View File

@ -254,9 +254,9 @@ static int tmp421_detect(struct i2c_client *client,
return -ENODEV;
}
strlcpy(info->type, tmp421_id[kind - 1].name, I2C_NAME_SIZE);
strlcpy(info->type, tmp421_id[kind].name, I2C_NAME_SIZE);
dev_info(&adapter->dev, "Detected TI %s chip at 0x%02x\n",
names[kind - 1], client->addr);
names[kind], client->addr);
return 0;
}