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We drop the power before we complete the probe successfully. We are supposed to drop it only when we are successful. Also, probing the etb_buffer_length happens with the power turned up. So we don't need to do that again in the helper. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>