i2c: Call client_unregister for new-style devices too

We call adapter->client_register for both legacy and new-style i2c
devices, however we only call adapter->client_unregister for legacy
drivers. This doesn't make much sense. Usually, drivers will undo
in client_unregister what they did in client_register, so we should
call neither or both for every given i2c device.

In order to ease the transition from legacy to new-style devices, it
seems preferable to actually call both.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: David Brownell <david-b@pacbell.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index e45bb2838f42..5e249d758828 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -300,6 +300,14 @@ void i2c_unregister_device(struct i2c_client *client)
                 return;
         }
 
+        if (adapter->client_unregister) {
+                if (adapter->client_unregister(client)) {
+                        dev_warn(&client->dev,
+                                 "client_unregister [%s] failed\n",
+                                 client->name);
+                }
+        }
+
         mutex_lock(&adapter->clist_lock);
         list_del(&client->list);
         mutex_unlock(&adapter->clist_lock);