From: Anshul Garg <anshul.g@xxxxxxxxxxx> If input device is grabbed then client which grabbed the device should only flush the device and for other clients error should be returned. Signed-off-by: Anshul Garg <anshul.g@xxxxxxxxxxx> --- drivers/input/evdev.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index fd325ec..70df398 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -248,6 +248,8 @@ static int evdev_flush(struct file *file, fl_owner_t id) if (!evdev->exist || client->revoked) retval = -ENODEV; + else if (evdev->grab != client) + retval = -EINVAL; else retval = input_flush_device(&evdev->handle, file); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
