[PATCH] uniput - fix crash on SMP

Only signal completion after marking request slot as free, otherwise other
processor can free request structure before we finish using it.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/input/misc/uinput.c

@@ -90,11 +90,11 @@ static inline int uinput_request_reserve_slot(struct uinput_device *udev, struct
 
 static void uinput_request_done(struct uinput_device *udev, struct uinput_request *request)
 {
-	complete(&request->done);
-
 	/* Mark slot as available */
 	udev->requests[request->id] = NULL;
 	wake_up_interruptible(&udev->requests_waitq);
+
+	complete(&request->done);
 }
 
 static int uinput_request_submit(struct input_dev *dev, struct uinput_request *request)