thermal/drivers/rz2gl: Add error check for reset_control_deassert()

If reset_control_deassert() fails, then we won't be able to access
the device registers. Therefore check the return code of
reset_control_deassert() and bail out in case of error.

While at it replace the parameter "&pdev->dev" -> "dev" in
devm_reset_control_get_exclusive().

Suggested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20211208164010.4130-1-biju.das.jz@bp.renesas.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

diff --git a/drivers/thermal/rzg2l_thermal.c b/drivers/thermal/rzg2l_thermal.c
index d47d4a30cd6ce215bf7bdcd36566846368689d46..7a9cdc1f37ca9dece6314d0a2cfbfe7b7c9dcdfa 100644 (file)
--- a/drivers/thermal/rzg2l_thermal.c
+++ b/drivers/thermal/rzg2l_thermal.c
@@ -170,12 +170,14 @@ static int rzg2l_thermal_probe(struct platform_device *pdev)
                return PTR_ERR(priv->base);
 
        priv->dev = dev;
-       priv->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
+       priv->rstc = devm_reset_control_get_exclusive(dev, NULL);
        if (IS_ERR(priv->rstc))
                return dev_err_probe(dev, PTR_ERR(priv->rstc),
                                     "failed to get cpg reset");
 
-       reset_control_deassert(priv->rstc);
+       ret = reset_control_deassert(priv->rstc);
+       if (ret)
+               return dev_err_probe(dev, ret, "failed to deassert");
 
        pm_runtime_enable(dev);
        pm_runtime_get_sync(dev);