diff options
| author | Cédric Le Goater <clg@fr.ibm.com> | 2015-03-19 20:44:44 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2015-03-20 18:25:12 +0300 |
| commit | f9f54f16bfa1bc76d827d4a2c80f72acbee72b05 (patch) | |
| tree | 1607a29188907b1a04a54fad2aadefea3bcad336 /drivers/hwmon | |
| parent | ccc9ac6cc9ff7c845daa930598e96be9bb978ade (diff) | |
| download | linux-f9f54f16bfa1bc76d827d4a2c80f72acbee72b05.tar.xz | |
hwmon: (ibmpowernv) change create_hwmon_attr_name() prototype
It simplifies the creation of the hwmon attributes and will help when
support for a new device tree layout is added. The patch also changes
the name of the routine to parse_opal_node_name().
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/ibmpowernv.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c index 7791608a6591..adfdf59e8f6c 100644 --- a/drivers/hwmon/ibmpowernv.c +++ b/drivers/hwmon/ibmpowernv.c @@ -152,29 +152,22 @@ static const char *convert_opal_attr_name(enum sensors type, * which need to be mapped as fan2_input, temp1_max respectively before * populating them inside hwmon device class. */ -static int create_hwmon_attr_name(struct device *dev, enum sensors type, - const char *node_name, - char *hwmon_attr_name) +static const char *parse_opal_node_name(const char *node_name, + enum sensors type, u32 *index) { char attr_suffix[MAX_ATTR_LEN]; const char *attr_name; - u32 index; int err; - err = get_sensor_index_attr(node_name, &index, attr_suffix); - if (err) { - dev_err(dev, "Sensor device node name '%s' is invalid\n", - node_name); - return err; - } + err = get_sensor_index_attr(node_name, index, attr_suffix); + if (err) + return ERR_PTR(err); attr_name = convert_opal_attr_name(type, attr_suffix); if (!attr_name) - return -ENOENT; + return ERR_PTR(-ENOENT); - snprintf(hwmon_attr_name, MAX_ATTR_LEN, "%s%d_%s", - sensor_groups[type].name, index, attr_name); - return 0; + return attr_name; } static int get_sensor_type(struct device_node *np) @@ -249,6 +242,9 @@ static int create_device_attrs(struct platform_device *pdev) } for_each_child_of_node(opal, np) { + const char *attr_name; + u32 opal_index; + if (np->name == NULL) continue; @@ -265,10 +261,17 @@ static int create_device_attrs(struct platform_device *pdev) sdata[count].id = sensor_id; sdata[count].type = type; - err = create_hwmon_attr_name(&pdev->dev, type, np->name, - sdata[count].name); - if (err) + + attr_name = parse_opal_node_name(np->name, type, &opal_index); + if (IS_ERR(attr_name)) { + dev_err(&pdev->dev, "Sensor device node name '%s' is invalid\n", + np->name); + err = PTR_ERR(attr_name); goto exit_put_node; + } + + snprintf(sdata[count].name, MAX_ATTR_LEN, "%s%d_%s", + sensor_groups[type].name, opal_index, attr_name); sysfs_attr_init(&sdata[count].dev_attr.attr); sdata[count].dev_attr.attr.name = sdata[count].name; |