HID: consolidate connect and disconnect into core code

HID core registers input, hidraw and hiddev devices, but leaves
unregistering it up to the individual driver, which is not really nice.
Let's move all the logic to the core.

Reported-by: Marcel Holtmann <marcel@holtmann.org>
Reported-by: Brian Rogers <brian@xyzw.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/hid.h b/include/linux/hid.h
index a0ebdace7baa..10f628416740 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -494,6 +494,7 @@ struct hid_device {							/* device report descriptor */
 
         /* hiddev event handler */
         int (*hiddev_connect)(struct hid_device *, unsigned int);
+        void (*hiddev_disconnect)(struct hid_device *);
         void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field,
                                   struct hid_usage *, __s32);
         void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
@@ -691,6 +692,7 @@ struct hid_device *hid_allocate_device(void);
 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
 int hid_check_keys_pressed(struct hid_device *hid);
 int hid_connect(struct hid_device *hid, unsigned int connect_mask);
+void hid_disconnect(struct hid_device *hid);
 
 /**
  * hid_map_usage - map usage input bits
@@ -800,6 +802,7 @@ static inline int __must_check hid_hw_start(struct hid_device *hdev,
  */
 static inline void hid_hw_stop(struct hid_device *hdev)
 {
+        hid_disconnect(hdev);
         hdev->ll_driver->stop(hdev);
 }