i2c: Remove detach_adapter
The detach_adapter callback has been deprecated for quite some time and has no
user left. Keeping it alive blocks other cleanups, so remove it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 0d873ba..f7cd05b 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -49,7 +49,7 @@
/* core_lock protects i2c_adapter_idr, and guarantees
that device detection, deletion of detected devices, and attach_adapter
- and detach_adapter calls are serialized */
+ calls are serialized */
static DEFINE_MUTEX(core_lock);
static DEFINE_IDR(i2c_adapter_idr);
@@ -1172,11 +1172,10 @@
}
EXPORT_SYMBOL_GPL(i2c_add_numbered_adapter);
-static int i2c_do_del_adapter(struct i2c_driver *driver,
+static void i2c_do_del_adapter(struct i2c_driver *driver,
struct i2c_adapter *adapter)
{
struct i2c_client *client, *_n;
- int res;
/* Remove the devices we created ourselves as the result of hardware
* probing (using a driver's detect method) */
@@ -1188,16 +1187,6 @@
i2c_unregister_device(client);
}
}
-
- if (!driver->detach_adapter)
- return 0;
- dev_warn(&adapter->dev, "%s: detach_adapter method is deprecated\n",
- driver->driver.name);
- res = driver->detach_adapter(adapter);
- if (res)
- dev_err(&adapter->dev, "detach_adapter failed (%d) "
- "for driver [%s]\n", res, driver->driver.name);
- return res;
}
static int __unregister_client(struct device *dev, void *dummy)
@@ -1218,7 +1207,8 @@
static int __process_removed_adapter(struct device_driver *d, void *data)
{
- return i2c_do_del_adapter(to_i2c_driver(d), data);
+ i2c_do_del_adapter(to_i2c_driver(d), data);
+ return 0;
}
/**
@@ -1231,7 +1221,6 @@
*/
int i2c_del_adapter(struct i2c_adapter *adap)
{
- int res = 0;
struct i2c_adapter *found;
struct i2c_client *client, *next;
@@ -1247,11 +1236,9 @@
/* Tell drivers about this removal */
mutex_lock(&core_lock);
- res = bus_for_each_drv(&i2c_bus_type, NULL, adap,
+ bus_for_each_drv(&i2c_bus_type, NULL, adap,
__process_removed_adapter);
mutex_unlock(&core_lock);
- if (res)
- return res;
/* Remove devices instantiated from sysfs */
mutex_lock_nested(&adap->userspace_clients_lock,
@@ -1270,8 +1257,8 @@
* we can't remove the dummy devices during the first pass: they
* could have been instantiated by real devices wishing to clean
* them up properly, so we give them a chance to do that first. */
- res = device_for_each_child(&adap->dev, NULL, __unregister_client);
- res = device_for_each_child(&adap->dev, NULL, __unregister_dummy);
+ device_for_each_child(&adap->dev, NULL, __unregister_client);
+ device_for_each_child(&adap->dev, NULL, __unregister_dummy);
#ifdef CONFIG_I2C_COMPAT
class_compat_remove_link(i2c_adapter_compat_class, &adap->dev,
@@ -1367,9 +1354,9 @@
static int __process_removed_driver(struct device *dev, void *data)
{
- if (dev->type != &i2c_adapter_type)
- return 0;
- return i2c_do_del_adapter(data, to_i2c_adapter(dev));
+ if (dev->type == &i2c_adapter_type)
+ i2c_do_del_adapter(data, to_i2c_adapter(dev));
+ return 0;
}
/**