Input: adbhid - fix OOPS introduced by dynalloc conversion

The problem is that adbhid[]->input is NULL, so the kernel oopses with
a null pointer dereference as soon as a key is pressed.
Signed-off-by: NPaul Mackerras <paulus@samba.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

drivers/macintosh/adbhid.c

@@ -723,6 +723,7 @@ adbhid_input_register(int id, int default_id, int original_handler_id,
 
 	sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
 
+	hid->input = input_dev;
 	hid->id = default_id;
 	hid->original_handler_id = original_handler_id;
 	hid->current_handler_id = current_handler_id;