[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: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -90,11 +90,11 @@ static inline int uinput_request_reserve_slot(struct uinput_device *udev, struct
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static void uinput_request_done(struct uinput_device *udev, struct uinput_request *request)
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{
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complete(&request->done);
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/* Mark slot as available */
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udev->requests[request->id] = NULL;
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wake_up_interruptible(&udev->requests_waitq);
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complete(&request->done);
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}
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static int uinput_request_submit(struct input_dev *dev, struct uinput_request *request)
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