HID: add compat support

Add compat option to hid code to allow loading of all modules on
systems which don't allow autoloading because of old userspace.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 8e3c264c9b2b..397e1b2ffe5a 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1532,6 +1532,14 @@ void hid_unregister_driver(struct hid_driver *hdrv)
 }
 EXPORT_SYMBOL_GPL(hid_unregister_driver);
 
+#ifdef CONFIG_HID_COMPAT
+static void hid_compat_load(struct work_struct *ws)
+{
+        request_module("hid-dummy");
+}
+static DECLARE_WORK(hid_compat_work, hid_compat_load);
+#endif
+
 static int __init hid_init(void)
 {
         int ret;
@@ -1546,6 +1554,10 @@ static int __init hid_init(void)
         if (ret)
                 goto err_bus;
 
+#ifdef CONFIG_HID_COMPAT
+        schedule_work(&hid_compat_work);
+#endif
+
         return 0;
 err_bus:
         bus_unregister(&hid_bus_type);