regulator: vctrl: Use locked regulator_get_voltage in probe path

In commit e9153311491d ("regulator: vctrl-regulator: Avoid deadlock getting
and setting the voltage"), all calls to get/set the voltage of the
control regulator were switched to unlocked versions to avoid deadlocks.
However, the call in the probe path is done without regulator locks
held. In this case the locked version should be used.

Switch back to the locked regulator_get_voltage() in the probe path to
avoid any mishaps.

Fixes: e9153311491d ("regulator: vctrl-regulator: Avoid deadlock getting and setting the voltage")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20210825033704.3307263-2-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/vctrl-regulator.c b/drivers/regulator/vctrl-regulator.c
index cbadb1c9967906e99aa34157374aae8e432ebb53..93d33201ffe0aa4d49bce0f497594382c429fd35 100644 (file)
--- a/drivers/regulator/vctrl-regulator.c
+++ b/drivers/regulator/vctrl-regulator.c
@@ -490,7 +490,8 @@ static int vctrl_probe(struct platform_device *pdev)
                if (ret)
                        return ret;
 
-               ctrl_uV = regulator_get_voltage_rdev(vctrl->ctrl_reg->rdev);
+               /* Use locked consumer API when not in regulator framework */
+               ctrl_uV = regulator_get_voltage(vctrl->ctrl_reg);
                if (ctrl_uV < 0) {
                        dev_err(&pdev->dev, "failed to get control voltage\n");
                        return ctrl_uV;