i2c: Class attribute cleanup
This patch is a minor cleanup/code shrink, using class infrastructure
in i2c-core to manage the i2c_adapter attribute.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/i2c/busses/i2c-isa.c b/drivers/i2c/busses/i2c-isa.c
index 745830b..819e899 100644
--- a/drivers/i2c/busses/i2c-isa.c
+++ b/drivers/i2c/busses/i2c-isa.c
@@ -64,16 +64,6 @@
}
-/* Copied from i2c-core */
-static ssize_t show_adapter_name(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct i2c_adapter *adap = dev_to_i2c_adapter(dev);
- return sprintf(buf, "%s\n", adap->name);
-}
-static DEVICE_ATTR(name, S_IRUGO, show_adapter_name, NULL);
-
-
/* We implement an interface which resembles i2c_{add,del}_driver,
but for i2c-isa drivers. We don't have to remember and handle lists
of drivers and adapters so this is much more simple, of course. */
@@ -146,20 +136,11 @@
printk(KERN_ERR "i2c-isa: Failed to register device\n");
goto exit;
}
- err = device_create_file(&isa_adapter.dev, &dev_attr_name);
- if (err) {
- printk(KERN_ERR "i2c-isa: Failed to create name file\n");
- goto exit_unregister;
- }
dev_dbg(&isa_adapter.dev, "%s registered\n", isa_adapter.name);
return 0;
-exit_unregister:
- init_completion(&isa_adapter.dev_released); /* Needed? */
- device_unregister(&isa_adapter.dev);
- wait_for_completion(&isa_adapter.dev_released);
exit:
return err;
}
@@ -187,7 +168,6 @@
/* Clean up the sysfs representation */
dev_dbg(&isa_adapter.dev, "Unregistering from sysfs\n");
init_completion(&isa_adapter.dev_released);
- device_remove_file(&isa_adapter.dev, &dev_attr_name);
device_unregister(&isa_adapter.dev);
/* Wait for sysfs to drop all references */
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 7bfd67f..1e3e1a5 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -107,27 +107,31 @@
/* ------------------------------------------------------------------------- */
+/* I2C bus adapters -- one roots each I2C or SMBUS segment */
+
void i2c_adapter_dev_release(struct device *dev)
{
struct i2c_adapter *adap = dev_to_i2c_adapter(dev);
complete(&adap->dev_released);
}
-/* ------------------------------------------------------------------------- */
-
-/* I2C bus adapters -- one roots each I2C or SMBUS segment */
-
-struct class i2c_adapter_class = {
- .owner = THIS_MODULE,
- .name = "i2c-adapter",
-};
-
-static ssize_t show_adapter_name(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t
+show_adapter_name(struct device *dev, struct device_attribute *attr, char *buf)
{
struct i2c_adapter *adap = dev_to_i2c_adapter(dev);
return sprintf(buf, "%s\n", adap->name);
}
-static DEVICE_ATTR(name, S_IRUGO, show_adapter_name, NULL);
+
+static struct device_attribute i2c_adapter_attrs[] = {
+ __ATTR(name, S_IRUGO, show_adapter_name, NULL),
+ { },
+};
+
+struct class i2c_adapter_class = {
+ .owner = THIS_MODULE,
+ .name = "i2c-adapter",
+ .dev_attrs = i2c_adapter_attrs,
+};
static void i2c_client_release(struct device *dev)
@@ -201,9 +205,6 @@
res = device_register(&adap->dev);
if (res)
goto out_list;
- res = device_create_file(&adap->dev, &dev_attr_name);
- if (res)
- goto out_unregister;
dev_dbg(&adap->dev, "adapter [%s] registered\n", adap->name);
@@ -219,10 +220,6 @@
mutex_unlock(&core_lists);
return res;
-out_unregister:
- init_completion(&adap->dev_released); /* Needed? */
- device_unregister(&adap->dev);
- wait_for_completion(&adap->dev_released);
out_list:
list_del(&adap->list);
idr_remove(&i2c_adapter_idr, adap->nr);
@@ -278,7 +275,6 @@
/* clean up the sysfs representation */
init_completion(&adap->dev_released);
- device_remove_file(&adap->dev, &dev_attr_name);
device_unregister(&adap->dev);
list_del(&adap->list);