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path: root/drivers/i2c/i2c-core.c
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Diffstat (limited to 'drivers/i2c/i2c-core.c')
-rw-r--r--drivers/i2c/i2c-core.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 0a79f7661017..7bf38c418086 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -654,6 +654,10 @@ int i2c_del_adapter(struct i2c_adapter *adap)
dev_dbg(&adap->dev, "adapter [%s] unregistered\n", adap->name);
+ /* Clear the device structure in case this adapter is ever going to be
+ added again */
+ memset(&adap->dev, 0, sizeof(adap->dev));
+
out_unlock:
mutex_unlock(&core_lock);
return res;
@@ -718,7 +722,8 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
INIT_LIST_HEAD(&driver->clients);
/* Walk the adapters that are already present */
- class_for_each_device(&i2c_adapter_class, driver, __attach_adapter);
+ class_for_each_device(&i2c_adapter_class, NULL, driver,
+ __attach_adapter);
mutex_unlock(&core_lock);
return 0;
@@ -778,7 +783,8 @@ void i2c_del_driver(struct i2c_driver *driver)
{
mutex_lock(&core_lock);
- class_for_each_device(&i2c_adapter_class, driver, __detach_adapter);
+ class_for_each_device(&i2c_adapter_class, NULL, driver,
+ __detach_adapter);
driver_unregister(&driver->driver);
pr_debug("i2c-core: driver [%s] unregistered\n", driver->driver.name);