* [lm-sensors] [PATCH 34/39] w83781d: Fix unchecked return status
@ 2006-09-28 22:48 Greg KH
0 siblings, 0 replies; only message in thread
From: Greg KH @ 2006-09-28 22:48 UTC (permalink / raw)
To: lm-sensors
From: Jim Cromie <jim.cromie at gmail.com>
w83781d: Fix unchecked return status
Add 2 attr-file groups (for base and model-specific attrs respectively),
create the base group with single call to sysfs_create_group,
check the return code on individual calls to device_create_file for each
of the model-specific attr-files.
Signed-off-by: Jim Cromie <jim.cromie at gmail.com>
Signed-off-by: Jean Delvare <khali at linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>
---
drivers/hwmon/w83781d.c | 277 ++++++++++++++++++++++++-----------------------
1 files changed, 143 insertions(+), 134 deletions(-)
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
index 95221b1..a4584ec 100644
--- a/drivers/hwmon/w83781d.c
+++ b/drivers/hwmon/w83781d.c
@@ -41,6 +41,7 @@ #include <linux/i2c.h>
#include <linux/i2c-isa.h>
#include <linux/hwmon.h>
#include <linux/hwmon-vid.h>
+#include <linux/sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <asm/io.h>
@@ -360,13 +361,6 @@ sysfs_in_offsets(6);
sysfs_in_offsets(7);
sysfs_in_offsets(8);
-#define device_create_file_in(client, offset) \
-do { \
-device_create_file(&client->dev, &dev_attr_in##offset##_input); \
-device_create_file(&client->dev, &dev_attr_in##offset##_min); \
-device_create_file(&client->dev, &dev_attr_in##offset##_max); \
-} while (0)
-
#define show_fan_reg(reg) \
static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
{ \
@@ -421,12 +415,6 @@ sysfs_fan_min_offset(2);
sysfs_fan_offset(3);
sysfs_fan_min_offset(3);
-#define device_create_file_fan(client, offset) \
-do { \
-device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
-device_create_file(&client->dev, &dev_attr_fan##offset##_min); \
-} while (0)
-
#define show_temp_reg(reg) \
static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
{ \
@@ -497,13 +485,6 @@ sysfs_temp_offsets(1);
sysfs_temp_offsets(2);
sysfs_temp_offsets(3);
-#define device_create_file_temp(client, offset) \
-do { \
-device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
-device_create_file(&client->dev, &dev_attr_temp##offset##_max); \
-device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \
-} while (0)
-
static ssize_t
show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
@@ -511,10 +492,8 @@ show_vid_reg(struct device *dev, struct
return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
}
-static
-DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
-#define device_create_file_vid(client) \
-device_create_file(&client->dev, &dev_attr_cpu0_vid);
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
static ssize_t
show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
@@ -535,10 +514,8 @@ store_vrm_reg(struct device *dev, struct
return count;
}
-static
-DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
-#define device_create_file_vrm(client) \
-device_create_file(&client->dev, &dev_attr_vrm);
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
static ssize_t
show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
@@ -546,10 +523,8 @@ show_alarms_reg(struct device *dev, stru
return sprintf(buf, "%u\n", data->alarms);
}
-static
-DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
-#define device_create_file_alarms(client) \
-device_create_file(&client->dev, &dev_attr_alarms);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83781d_data *data = w83781d_update_device(dev);
@@ -615,12 +590,6 @@ static DEVICE_ATTR(beep_##reg, S_IRUGO |
sysfs_beep(ENABLE, enable);
sysfs_beep(MASK, mask);
-#define device_create_file_beep(client) \
-do { \
-device_create_file(&client->dev, &dev_attr_beep_enable); \
-device_create_file(&client->dev, &dev_attr_beep_mask); \
-} while (0)
-
static ssize_t
show_fan_div_reg(struct device *dev, char *buf, int nr)
{
@@ -686,11 +655,6 @@ sysfs_fan_div(1);
sysfs_fan_div(2);
sysfs_fan_div(3);
-#define device_create_file_fan_div(client, offset) \
-do { \
-device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
-} while (0)
-
static ssize_t
show_pwm_reg(struct device *dev, char *buf, int nr)
{
@@ -787,16 +751,6 @@ sysfs_pwmenable(2); /* only PWM2 can be
sysfs_pwm(3);
sysfs_pwm(4);
-#define device_create_file_pwm(client, offset) \
-do { \
-device_create_file(&client->dev, &dev_attr_pwm##offset); \
-} while (0)
-
-#define device_create_file_pwmenable(client, offset) \
-do { \
-device_create_file(&client->dev, &dev_attr_pwm##offset##_enable); \
-} while (0)
-
static ssize_t
show_sensor_reg(struct device *dev, char *buf, int nr)
{
@@ -865,11 +819,6 @@ sysfs_sensor(1);
sysfs_sensor(2);
sysfs_sensor(3);
-#define device_create_file_sensor(client, offset) \
-do { \
-device_create_file(&client->dev, &dev_attr_temp##offset##_type); \
-} while (0)
-
/* This function is called when:
* w83781d_driver is inserted (when this module is loaded), for each
available adapter
@@ -994,11 +943,69 @@ ERROR_SC_0:
return err;
}
+#define IN_UNIT_ATTRS(X) \
+ &dev_attr_in##X##_input.attr, \
+ &dev_attr_in##X##_min.attr, \
+ &dev_attr_in##X##_max.attr
+
+#define FAN_UNIT_ATTRS(X) \
+ &dev_attr_fan##X##_input.attr, \
+ &dev_attr_fan##X##_min.attr, \
+ &dev_attr_fan##X##_div.attr
+
+#define TEMP_UNIT_ATTRS(X) \
+ &dev_attr_temp##X##_input.attr, \
+ &dev_attr_temp##X##_max.attr, \
+ &dev_attr_temp##X##_max_hyst.attr
+
+static struct attribute* w83781d_attributes[] = {
+ IN_UNIT_ATTRS(0),
+ IN_UNIT_ATTRS(2),
+ IN_UNIT_ATTRS(3),
+ IN_UNIT_ATTRS(4),
+ IN_UNIT_ATTRS(5),
+ IN_UNIT_ATTRS(6),
+ FAN_UNIT_ATTRS(1),
+ FAN_UNIT_ATTRS(2),
+ FAN_UNIT_ATTRS(3),
+ TEMP_UNIT_ATTRS(1),
+ TEMP_UNIT_ATTRS(2),
+ &dev_attr_cpu0_vid.attr,
+ &dev_attr_vrm.attr,
+ &dev_attr_alarms.attr,
+ &dev_attr_beep_mask.attr,
+ &dev_attr_beep_enable.attr,
+ NULL
+};
+static const struct attribute_group w83781d_group = {
+ .attrs = w83781d_attributes,
+};
+
+static struct attribute *w83781d_attributes_opt[] = {
+ IN_UNIT_ATTRS(1),
+ IN_UNIT_ATTRS(7),
+ IN_UNIT_ATTRS(8),
+ TEMP_UNIT_ATTRS(3),
+ &dev_attr_pwm1.attr,
+ &dev_attr_pwm2.attr,
+ &dev_attr_pwm2_enable.attr,
+ &dev_attr_pwm3.attr,
+ &dev_attr_pwm4.attr,
+ &dev_attr_temp1_type.attr,
+ &dev_attr_temp2_type.attr,
+ &dev_attr_temp3_type.attr,
+ NULL
+};
+static const struct attribute_group w83781d_group_opt = {
+ .attrs = w83781d_attributes_opt,
+};
+
static int
w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
{
int i = 0, val1 = 0, val2;
- struct i2c_client *new_client;
+ struct i2c_client *client;
+ struct device *dev;
struct w83781d_data *data;
int err;
const char *client_name = "";
@@ -1075,13 +1082,14 @@ #undef REALLY_SLOW_IO
goto ERROR1;
}
- new_client = &data->client;
- i2c_set_clientdata(new_client, data);
- new_client->addr = address;
+ client = &data->client;
+ i2c_set_clientdata(client, data);
+ client->addr = address;
mutex_init(&data->lock);
- new_client->adapter = adapter;
- new_client->driver = is_isa ? &w83781d_isa_driver : &w83781d_driver;
- new_client->flags = 0;
+ client->adapter = adapter;
+ client->driver = is_isa ? &w83781d_isa_driver : &w83781d_driver;
+ client->flags = 0;
+ dev = &client->dev;
/* Now, we do the remaining detection. */
@@ -1090,20 +1098,18 @@ #undef REALLY_SLOW_IO
force_*=... parameter, and the Winbond will be reset to the right
bank. */
if (kind < 0) {
- if (w83781d_read_value(new_client, W83781D_REG_CONFIG) & 0x80) {
- dev_dbg(&new_client->dev, "Detection failed at step "
- "3\n");
+ if (w83781d_read_value(client, W83781D_REG_CONFIG) & 0x80) {
+ dev_dbg(dev, "Detection failed at step 3\n");
err = -ENODEV;
goto ERROR2;
}
- val1 = w83781d_read_value(new_client, W83781D_REG_BANK);
- val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
+ val1 = w83781d_read_value(client, W83781D_REG_BANK);
+ val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN);
/* Check for Winbond or Asus ID if in bank 0 */
if ((!(val1 & 0x07)) &&
(((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3))
|| ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) {
- dev_dbg(&new_client->dev, "Detection failed at step "
- "4\n");
+ dev_dbg(dev, "Detection failed at step 4\n");
err = -ENODEV;
goto ERROR2;
}
@@ -1112,9 +1118,8 @@ #undef REALLY_SLOW_IO
if ((!is_isa) && (((!(val1 & 0x80)) && (val2 = 0xa3)) ||
((val1 & 0x80) && (val2 = 0x5c)))) {
if (w83781d_read_value
- (new_client, W83781D_REG_I2C_ADDR) != address) {
- dev_dbg(&new_client->dev, "Detection failed "
- "at step 5\n");
+ (client, W83781D_REG_I2C_ADDR) != address) {
+ dev_dbg(dev, "Detection failed at step 5\n");
err = -ENODEV;
goto ERROR2;
}
@@ -1123,27 +1128,26 @@ #undef REALLY_SLOW_IO
/* We have either had a force parameter, or we have already detected the
Winbond. Put it now into bank 0 and Vendor ID High Byte */
- w83781d_write_value(new_client, W83781D_REG_BANK,
- (w83781d_read_value(new_client,
- W83781D_REG_BANK) & 0x78) |
- 0x80);
+ w83781d_write_value(client, W83781D_REG_BANK,
+ (w83781d_read_value(client, W83781D_REG_BANK)
+ & 0x78) | 0x80);
/* Determine the chip type. */
if (kind <= 0) {
/* get vendor ID */
- val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
+ val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN);
if (val2 = 0x5c)
vendid = winbond;
else if (val2 = 0x12)
vendid = asus;
else {
- dev_dbg(&new_client->dev, "Chip was made by neither "
+ dev_dbg(dev, "Chip was made by neither "
"Winbond nor Asus?\n");
err = -ENODEV;
goto ERROR2;
}
- val1 = w83781d_read_value(new_client, W83781D_REG_WCHIPID);
+ val1 = w83781d_read_value(client, W83781D_REG_WCHIPID);
if ((val1 = 0x10 || val1 = 0x11) && vendid = winbond)
kind = w83781d;
else if (val1 = 0x30 && vendid = winbond)
@@ -1157,7 +1161,7 @@ #undef REALLY_SLOW_IO
kind = as99127f;
else {
if (kind = 0)
- dev_warn(&new_client->dev, "Ignoring 'force' "
+ dev_warn(dev, "Ignoring 'force' "
"parameter for unknown chip at "
"adapter %d, address 0x%02x\n",
i2c_adapter_id(adapter), address);
@@ -1179,20 +1183,20 @@ #undef REALLY_SLOW_IO
}
/* Fill in the remaining client fields and put into the global list */
- strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
+ strlcpy(client->name, client_name, I2C_NAME_SIZE);
data->type = kind;
data->valid = 0;
mutex_init(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(new_client)))
+ if ((err = i2c_attach_client(client)))
goto ERROR2;
/* attach secondary i2c lm75-like clients */
if (!is_isa) {
if ((err = w83781d_detect_subclients(adapter, address,
- kind, new_client)))
+ kind, client)))
goto ERROR3;
} else {
data->lm75[0] = NULL;
@@ -1200,11 +1204,11 @@ #undef REALLY_SLOW_IO
}
/* Initialize the chip */
- w83781d_init_client(new_client);
+ w83781d_init_client(client);
/* A few vars need to be filled upon startup */
for (i = 1; i <= 3; i++) {
- data->fan_min[i - 1] = w83781d_read_value(new_client,
+ data->fan_min[i - 1] = w83781d_read_value(client,
W83781D_REG_FAN_MIN(i));
}
if (kind != w83781d && kind != as99127f)
@@ -1212,65 +1216,68 @@ #undef REALLY_SLOW_IO
data->pwmenable[i] = 1;
/* Register sysfs hooks */
- data->class_dev = hwmon_device_register(&new_client->dev);
- if (IS_ERR(data->class_dev)) {
- err = PTR_ERR(data->class_dev);
+ if ((err = sysfs_create_group(&dev->kobj, &w83781d_group)))
goto ERROR4;
- }
- device_create_file_in(new_client, 0);
- if (kind != w83783s)
- device_create_file_in(new_client, 1);
- device_create_file_in(new_client, 2);
- device_create_file_in(new_client, 3);
- device_create_file_in(new_client, 4);
- device_create_file_in(new_client, 5);
- device_create_file_in(new_client, 6);
+ if (kind != w83783s) {
+ if ((err = device_create_file(dev, &dev_attr_in1_input))
+ || (err = device_create_file(dev, &dev_attr_in1_min))
+ || (err = device_create_file(dev, &dev_attr_in1_max)))
+ goto ERROR4;
+ }
if (kind != as99127f && kind != w83781d && kind != w83783s) {
- device_create_file_in(new_client, 7);
- device_create_file_in(new_client, 8);
+ if ((err = device_create_file(dev, &dev_attr_in7_input))
+ || (err = device_create_file(dev, &dev_attr_in7_min))
+ || (err = device_create_file(dev, &dev_attr_in7_max))
+ || (err = device_create_file(dev, &dev_attr_in8_input))
+ || (err = device_create_file(dev, &dev_attr_in8_min))
+ || (err = device_create_file(dev, &dev_attr_in8_max)))
+ goto ERROR4;
+ }
+ if (kind != w83783s) {
+ if ((err = device_create_file(dev, &dev_attr_temp3_input))
+ || (err = device_create_file(dev, &dev_attr_temp3_max))
+ || (err = device_create_file(dev,
+ &dev_attr_temp3_max_hyst)))
+ goto ERROR4;
}
-
- device_create_file_fan(new_client, 1);
- device_create_file_fan(new_client, 2);
- device_create_file_fan(new_client, 3);
-
- device_create_file_temp(new_client, 1);
- device_create_file_temp(new_client, 2);
- if (kind != w83783s)
- device_create_file_temp(new_client, 3);
-
- device_create_file_vid(new_client);
- device_create_file_vrm(new_client);
-
- device_create_file_fan_div(new_client, 1);
- device_create_file_fan_div(new_client, 2);
- device_create_file_fan_div(new_client, 3);
-
- device_create_file_alarms(new_client);
-
- device_create_file_beep(new_client);
if (kind != w83781d && kind != as99127f) {
- device_create_file_pwm(new_client, 1);
- device_create_file_pwm(new_client, 2);
- device_create_file_pwmenable(new_client, 2);
+ if ((err = device_create_file(dev, &dev_attr_pwm1))
+ || (err = device_create_file(dev, &dev_attr_pwm2))
+ || (err = device_create_file(dev, &dev_attr_pwm2_enable)))
+ goto ERROR4;
}
if (kind = w83782d && !is_isa) {
- device_create_file_pwm(new_client, 3);
- device_create_file_pwm(new_client, 4);
+ if ((err = device_create_file(dev, &dev_attr_pwm3))
+ || (err = device_create_file(dev, &dev_attr_pwm4)))
+ goto ERROR4;
}
if (kind != as99127f && kind != w83781d) {
- device_create_file_sensor(new_client, 1);
- device_create_file_sensor(new_client, 2);
- if (kind != w83783s)
- device_create_file_sensor(new_client, 3);
+ if ((err = device_create_file(dev, &dev_attr_temp1_type))
+ || (err = device_create_file(dev,
+ &dev_attr_temp2_type)))
+ goto ERROR4;
+ if (kind != w83783s) {
+ if ((err = device_create_file(dev,
+ &dev_attr_temp3_type)))
+ goto ERROR4;
+ }
+ }
+
+ data->class_dev = hwmon_device_register(dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ goto ERROR4;
}
return 0;
ERROR4:
+ sysfs_remove_group(&dev->kobj, &w83781d_group);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_opt);
+
if (data->lm75[1]) {
i2c_detach_client(data->lm75[1]);
kfree(data->lm75[1]);
@@ -1280,7 +1287,7 @@ ERROR4:
kfree(data->lm75[0]);
}
ERROR3:
- i2c_detach_client(new_client);
+ i2c_detach_client(client);
ERROR2:
kfree(data);
ERROR1:
@@ -1297,9 +1304,11 @@ w83781d_detach_client(struct i2c_client
int err;
/* main client */
- if (data)
+ if (data) {
hwmon_device_unregister(data->class_dev);
-
+ sysfs_remove_group(&client->dev.kobj, &w83781d_group);
+ sysfs_remove_group(&client->dev.kobj, &w83781d_group_opt);
+ }
if (i2c_is_isa_client(client))
release_region(client->addr, W83781D_EXTENT);
--
1.4.2.1
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2006-09-28 22:48 [lm-sensors] [PATCH 34/39] w83781d: Fix unchecked return status Greg KH
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