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>

2 files changed, 16 insertions, 11 deletions

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index ca9bb26c2076..be34d32906bd 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1237,6 +1237,17 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
 }
 EXPORT_SYMBOL_GPL(hid_connect);
 
+void hid_disconnect(struct hid_device *hdev)
+{
+        if (hdev->claimed & HID_CLAIMED_INPUT)
+                hidinput_disconnect(hdev);
+        if (hdev->claimed & HID_CLAIMED_HIDDEV)
+                hdev->hiddev_disconnect(hdev);
+        if (hdev->claimed & HID_CLAIMED_HIDRAW)
+                hidraw_disconnect(hdev);
+}
+EXPORT_SYMBOL_GPL(hid_disconnect);
+
 /* a list of devices for which there is a specialized driver on HID bus */
 static const struct hid_device_id hid_blacklist[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 1b0e07a67d6d..03bd703255a3 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1041,13 +1041,6 @@ static void usbhid_stop(struct hid_device *hid)
 
         hid_cancel_delayed_stuff(usbhid);
 
-        if (hid->claimed & HID_CLAIMED_INPUT)
-                hidinput_disconnect(hid);
-        if (hid->claimed & HID_CLAIMED_HIDDEV)
-                hiddev_disconnect(hid);
-        if (hid->claimed & HID_CLAIMED_HIDRAW)
-                hidraw_disconnect(hid);
-
         hid->claimed = 0;
 
         usb_free_urb(usbhid->urbin);
@@ -1085,7 +1078,7 @@ static struct hid_ll_driver usb_hid_driver = {
         .hidinput_input_event = usb_hidinput_input_event,
 };
 
-static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
+static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
         struct usb_host_interface *interface = intf->cur_altsetting;
         struct usb_device *dev = interface_to_usbdev(intf);
@@ -1117,6 +1110,7 @@ static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
         hid->ff_init = hid_pidff_init;
 #ifdef CONFIG_USB_HIDDEV
         hid->hiddev_connect = hiddev_connect;
+        hid->hiddev_disconnect = hiddev_disconnect;
         hid->hiddev_hid_event = hiddev_hid_event;
         hid->hiddev_report_event = hiddev_report_event;
 #endif
@@ -1177,7 +1171,7 @@ err:
         return ret;
 }
 
-static void hid_disconnect(struct usb_interface *intf)
+static void usbhid_disconnect(struct usb_interface *intf)
 {
         struct hid_device *hid = usb_get_intfdata(intf);
         struct usbhid_device *usbhid;
@@ -1359,8 +1353,8 @@ MODULE_DEVICE_TABLE (usb, hid_usb_ids);
 
 static struct usb_driver hid_driver = {
         .name =         "usbhid",
-        .probe =        hid_probe,
-        .disconnect =   hid_disconnect,
+        .probe =        usbhid_probe,
+        .disconnect =   usbhid_disconnect,
 #ifdef CONFIG_PM
         .suspend =      hid_suspend,
         .resume =       hid_resume,