We used to take a lock in tegra186_utmi_bias_pad_power_on() but now we
have moved the lock into the caller.  Unfortunately, when we moved the
lock this unlock was left behind and it results in a double unlock.
Delete it now.
Fixes: b47158fb4295 ("phy: tegra: xusb: Use a bitmask for UTMI pad power state tracking")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/aAjmR6To4EnvRl4G@stanley.mountain
Signed-off-by: Vinod Koul <vkoul@kernel.org>
        } else {
                clk_disable_unprepare(priv->usb2_trk_clk);
        }
-
-       mutex_unlock(&padctl->lock);
 }
 
 static void tegra186_utmi_bias_pad_power_off(struct tegra_xusb_padctl *padctl)