diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-21 15:45:05 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-22 11:05:44 -0700 |
| commit | eefafb79a4489b7eeb1853621f95139e3f7cb94c (patch) | |
| tree | a638213c4837550e0541be269c80c39b2514e508 | |
| parent | 0597129cdc464ba3723f340a5a6cbd1e80e78210 (diff) | |
w1: slaves: w1_ds2781: convert to use w1_family_ops.groups
This moves the sysfs file creation/removal to the w1 core by using the
.groups field, saving code in the slave driver.
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/w1/slaves/w1_ds2781.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/drivers/w1/slaves/w1_ds2781.c b/drivers/w1/slaves/w1_ds2781.c index 1aba8e41ad46..1eb98fb1688d 100644 --- a/drivers/w1/slaves/w1_ds2781.c +++ b/drivers/w1/slaves/w1_ds2781.c @@ -87,22 +87,28 @@ int w1_ds2781_eeprom_cmd(struct device *dev, int addr, int cmd) } EXPORT_SYMBOL(w1_ds2781_eeprom_cmd); -static ssize_t w1_ds2781_read_bin(struct file *filp, - struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t off, size_t count) +static ssize_t w1_slave_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, + loff_t off, size_t count) { struct device *dev = container_of(kobj, struct device, kobj); return w1_ds2781_io(dev, buf, off, count, 0); } -static struct bin_attribute w1_ds2781_bin_attr = { - .attr = { - .name = "w1_slave", - .mode = S_IRUGO, - }, - .size = DS2781_DATA_SIZE, - .read = w1_ds2781_read_bin, +static BIN_ATTR_RO(w1_slave, DS2781_DATA_SIZE); + +static struct bin_attribute *w1_ds2781_bin_attrs[] = { + &bin_attr_w1_slave, + NULL, +}; + +static const struct attribute_group w1_ds2781_group = { + .bin_attrs = w1_ds2781_bin_attrs, +}; + +static const struct attribute_group *w1_ds2781_groups[] = { + &w1_ds2781_group, + NULL, }; static DEFINE_IDA(bat_ida); @@ -130,16 +136,10 @@ static int w1_ds2781_add_slave(struct w1_slave *sl) if (ret) goto pdev_add_failed; - ret = sysfs_create_bin_file(&sl->dev.kobj, &w1_ds2781_bin_attr); - if (ret) - goto bin_attr_failed; - dev_set_drvdata(&sl->dev, pdev); return 0; -bin_attr_failed: - platform_device_del(pdev); pdev_add_failed: platform_device_put(pdev); pdev_alloc_failed: @@ -155,12 +155,12 @@ static void w1_ds2781_remove_slave(struct w1_slave *sl) platform_device_unregister(pdev); ida_simple_remove(&bat_ida, id); - sysfs_remove_bin_file(&sl->dev.kobj, &w1_ds2781_bin_attr); } static struct w1_family_ops w1_ds2781_fops = { .add_slave = w1_ds2781_add_slave, .remove_slave = w1_ds2781_remove_slave, + .groups = w1_ds2781_groups, }; static struct w1_family w1_ds2781_family = { |