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lvs_rh_probe() can return some nonnegative value from usb_control_msg() when it is less than "USB_DT_HUB_NONVAR_SIZE + 2" that is considered as a failure. Make lvs_rh_probe() return -EINVAL in this case. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Evgeny Novikov <novikov@ispras.ru> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200805090643.3432-1-novikov@ispras.ru Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>