Quoting Deepak Kumar Singh (2021-08-05 04:12:53) > diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c > index 934fcc4..b84cb31 100644 > --- a/drivers/soc/qcom/qcom_aoss.c > +++ b/drivers/soc/qcom/qcom_aoss.c > @@ -515,6 +521,43 @@ static void qmp_cooling_devices_remove(struct qmp *qmp) > thermal_cooling_device_unregister(qmp->cooling_devs[i].cdev); > } > > +/** > + * qmp_get() - get a qmp handle from a device > + * @dev: client device pointer > + * > + * Return: handle to qmp device on success, ERR_PTR() on failure > + */ > +struct qmp *qmp_get(struct device *dev) > +{ > + struct platform_device *pdev; > + struct device_node *np; > + struct qmp *qmp; > + > + if (!dev || !dev->of_node) > + return ERR_PTR(-EINVAL); > + > + np = of_parse_phandle(dev->of_node, "qcom,qmp", 0); > + if (!np) > + return ERR_PTR(-ENODEV); > + > + pdev = of_find_device_by_node(np); > + of_node_put(np); > + if (!pdev) > + return ERR_PTR(-EINVAL); > + > + qmp = platform_get_drvdata(pdev); > + > + return qmp ? qmp : ERR_PTR(-EPROBE_DEFER); > +} > +EXPORT_SYMBOL(qmp_get); > + > +void qmp_put(struct qmp *qmp) > +{ > + if (!IS_ERR_OR_NULL(qmp)) > + put_device(qmp->dev); Where is the corresponding get_device() call? > +} > +EXPORT_SYMBOL(qmp_put); > + > static int qmp_probe(struct platform_device *pdev) > { > struct resource *res;