Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754266Ab0HZPyf (ORCPT ); Thu, 26 Aug 2010 11:54:35 -0400 Received: from imr4.ericy.com ([198.24.6.8]:32803 "EHLO imr4.ericy.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754113Ab0HZPye (ORCPT ); Thu, 26 Aug 2010 11:54:34 -0400 From: Guenter Roeck To: Jean Delvare , Andrew Morton CC: Randy Dunlap , "Ira W. Snyder" , "Darrick J. Wong" , lm-sensors@lm-sensors.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, Guenter Roeck Subject: [PATCH] hwmon: Fix checkpatch errors in lm90 driver Date: Thu, 26 Aug 2010 08:54:36 -0700 Message-ID: <1282838076-7175-1-git-send-email-guenter.roeck@ericsson.com> X-Mailer: git-send-email 1.7.0.87.g0901d MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7623 Lines: 220 Signed-off-by: Guenter Roeck --- The main rationale for this cleanup is to prepare the driver for adding max6696 support. drivers/hwmon/lm90.c | 110 +++++++++++++++++++++++++++++++++---------------- 1 files changed, 74 insertions(+), 36 deletions(-) diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 760ef72..58a5605 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -387,8 +387,13 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct i2c_client *client = to_i2c_client(dev); struct lm90_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); int nr = attr->index; + long val; + int err; + + err = strict_strtol(buf, 10, &val); + if (err < 0) + return err; /* +16 degrees offset for temp2 for the LM99 */ if (data->kind == lm99 && attr->index == 3) @@ -442,8 +447,13 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct i2c_client *client = to_i2c_client(dev); struct lm90_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); int nr = attr->index; + long val; + int err; + + err = strict_strtol(buf, 10, &val); + if (err < 0) + return err; /* +16 degrees offset for temp2 for the LM99 */ if (data->kind == lm99 && attr->index <= 2) @@ -469,7 +479,8 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, return count; } -static ssize_t show_temphyst(struct device *dev, struct device_attribute *devattr, +static ssize_t show_temphyst(struct device *dev, + struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); @@ -495,9 +506,14 @@ static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy, { struct i2c_client *client = to_i2c_client(dev); struct lm90_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); + long val; + int err; int temp; + err = strict_strtol(buf, 10, &val); + if (err < 0) + return err; + mutex_lock(&data->update_lock); if (data->kind == adt7461) temp = temp_from_u8_adt7461(data, data->temp8[2]); @@ -600,7 +616,12 @@ static ssize_t set_pec(struct device *dev, struct device_attribute *dummy, const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); - long val = simple_strtol(buf, NULL, 10); + long val; + int err; + + err = strict_strtol(buf, 10, &val); + if (err < 0) + return err; switch (val) { case 0: @@ -622,8 +643,10 @@ static DEVICE_ATTR(pec, S_IWUSR | S_IRUGO, show_pec, set_pec); * Real code */ -/* The ADM1032 supports PEC but not on write byte transactions, so we need - to explicitly ask for a transaction without PEC. */ +/* + * The ADM1032 supports PEC but not on write byte transactions, so we need + * to explicitly ask for a transaction without PEC. + */ static inline s32 adm1032_write_byte(struct i2c_client *client, u8 value) { return i2c_smbus_xfer(client->adapter, client->addr, @@ -631,20 +654,22 @@ static inline s32 adm1032_write_byte(struct i2c_client *client, u8 value) I2C_SMBUS_WRITE, value, I2C_SMBUS_BYTE, NULL); } -/* It is assumed that client->update_lock is held (unless we are in - detection or initialization steps). This matters when PEC is enabled, - because we don't want the address pointer to change between the write - byte and the read byte transactions. */ -static int lm90_read_reg(struct i2c_client* client, u8 reg, u8 *value) +/* + * It is assumed that client->update_lock is held (unless we are in + * detection or initialization steps). This matters when PEC is enabled, + * because we don't want the address pointer to change between the write + * byte and the read byte transactions. + */ +static int lm90_read_reg(struct i2c_client *client, u8 reg, u8 *value) { int err; - if (client->flags & I2C_CLIENT_PEC) { - err = adm1032_write_byte(client, reg); - if (err >= 0) - err = i2c_smbus_read_byte(client); - } else - err = i2c_smbus_read_byte_data(client, reg); + if (client->flags & I2C_CLIENT_PEC) { + err = adm1032_write_byte(client, reg); + if (err >= 0) + err = i2c_smbus_read_byte(client); + } else + err = i2c_smbus_read_byte_data(client, reg); if (err < 0) { dev_warn(&client->dev, "Register %#02x read failed (%d)\n", @@ -669,14 +694,21 @@ static int lm90_detect(struct i2c_client *new_client, return -ENODEV; /* detection and identification */ - if ((man_id = i2c_smbus_read_byte_data(new_client, - LM90_REG_R_MAN_ID)) < 0 - || (chip_id = i2c_smbus_read_byte_data(new_client, - LM90_REG_R_CHIP_ID)) < 0 - || (reg_config1 = i2c_smbus_read_byte_data(new_client, - LM90_REG_R_CONFIG1)) < 0 - || (reg_convrate = i2c_smbus_read_byte_data(new_client, - LM90_REG_R_CONVRATE)) < 0) + man_id = i2c_smbus_read_byte_data(new_client, LM90_REG_R_MAN_ID); + if (man_id < 0) + return -ENODEV; + + chip_id = i2c_smbus_read_byte_data(new_client, LM90_REG_R_CHIP_ID); + if (chip_id < 0) + return -ENODEV; + + reg_config1 = i2c_smbus_read_byte_data(new_client, LM90_REG_R_CONFIG1); + if (reg_config1 < 0) + return -ENODEV; + + reg_convrate = i2c_smbus_read_byte_data(new_client, + LM90_REG_R_CONVRATE); + if (reg_convrate < 0) return -ENODEV; if ((address == 0x4C || address == 0x4D) @@ -826,16 +858,18 @@ static int lm90_probe(struct i2c_client *new_client, lm90_init_client(new_client); /* Register sysfs hooks */ - if ((err = sysfs_create_group(&new_client->dev.kobj, &lm90_group))) + err = sysfs_create_group(&new_client->dev.kobj, &lm90_group); + if (err) goto exit_free; if (new_client->flags & I2C_CLIENT_PEC) { - if ((err = device_create_file(&new_client->dev, - &dev_attr_pec))) + err = device_create_file(&new_client->dev, &dev_attr_pec); + if (err) goto exit_remove_files; } if (data->kind != max6657 && data->kind != max6646) { - if ((err = device_create_file(&new_client->dev, - &sensor_dev_attr_temp2_offset.dev_attr))) + err = device_create_file(&new_client->dev, + &sensor_dev_attr_temp2_offset.dev_attr); + if (err) goto exit_remove_files; } @@ -883,9 +917,8 @@ static void lm90_init_client(struct i2c_client *client) * 0.125 degree resolution) and range (0x08, extend range * to -64 degree) mode for the remote temperature sensor. */ - if (data->kind == max6680) { + if (data->kind == max6680) config |= 0x18; - } config &= 0xBF; /* run */ if (config != data->config_orig) /* Only write if changed */ @@ -961,9 +994,14 @@ static int lm90_read16(struct i2c_client *client, u8 regh, u8 regl, u16 *value) * we have to read the low byte again, and now we believe we have a * correct reading. */ - if ((err = lm90_read_reg(client, regh, &oldh)) - || (err = lm90_read_reg(client, regl, &l)) - || (err = lm90_read_reg(client, regh, &newh))) + err = lm90_read_reg(client, regh, &oldh); + if (err) + return err; + err = lm90_read_reg(client, regl, &l); + if (err) + return err; + err = lm90_read_reg(client, regh, &newh); + if (err) return err; if (oldh != newh) { err = lm90_read_reg(client, regl, &l); -- 1.7.0.87.g0901d -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/