soc: qcom: pmic_glink: fix OF node leak

Make sure to drop the OF node reference taken when registering the
auxiliary devices when the devices are later released.

Fixes: 58ef4ec ("soc: qcom: pmic_glink: Introduce base PMIC GLINK driver")
Cc: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250708085717.15922-1-johan@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: jhovold

drivers/soc/qcom/pmic_glink.c

@@ -167,7 +167,10 @@ static int pmic_glink_rpmsg_callback(struct rpmsg_device *rpdev, void *data,
 	return 0;
 }
 
-static void pmic_glink_aux_release(struct device *dev) {}
+static void pmic_glink_aux_release(struct device *dev)
+{
+	of_node_put(dev->of_node);
+}
 
 static int pmic_glink_add_aux_device(struct pmic_glink *pg,
 				     struct auxiliary_device *aux,
@@ -181,8 +184,10 @@ static int pmic_glink_add_aux_device(struct pmic_glink *pg,
 	aux->dev.release = pmic_glink_aux_release;
 	device_set_of_node_from_dev(&aux->dev, parent);
 	ret = auxiliary_device_init(aux);
-	if (ret)
+	if (ret) {
+		of_node_put(aux->dev.of_node);
 		return ret;
+	}
 
 	ret = auxiliary_device_add(aux);
 	if (ret)