Merge branch 'linus' into x86/doc

1 files changed, 13 insertions, 4 deletions

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 7608df83d6d1..550853f79ae8 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -722,7 +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;
@@ -782,7 +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);
@@ -811,7 +813,12 @@ static int i2c_check_addr(struct i2c_adapter *adapter, int addr)
 int i2c_attach_client(struct i2c_client *client)
 {
         struct i2c_adapter *adapter = client->adapter;
-        int res = 0;
+        int res;
+
+        /* Check for address business */
+        res = i2c_check_addr(adapter, client->addr);
+        if (res)
+                return res;
 
         client->dev.parent = &client->adapter->dev;
         client->dev.bus = &i2c_bus_type;
@@ -1449,9 +1456,11 @@ i2c_new_probed_device(struct i2c_adapter *adap,
                 if ((addr_list[i] & ~0x07) == 0x30
                  || (addr_list[i] & ~0x0f) == 0x50
                  || !i2c_check_functionality(adap, I2C_FUNC_SMBUS_QUICK)) {
+                        union i2c_smbus_data data;
+
                         if (i2c_smbus_xfer(adap, addr_list[i], 0,
                                            I2C_SMBUS_READ, 0,
-                                           I2C_SMBUS_BYTE, NULL) >= 0)
+                                           I2C_SMBUS_BYTE, &data) >= 0)
                                 break;
                 } else {
                         if (i2c_smbus_xfer(adap, addr_list[i], 0,