usb: chipidea: msm: ci_hdrc_msm_probe() missing of_node_get()

Boot fails for qcom-apq8074-dragonboard on 4.13-rc1 with error:
OF: ERROR: Bad of_node_put() on /soc/usb@f9a55000

The error will occur if the configuration is set to:
   CONFIG_OF_OVERLAY y
   CONFIG_OF_UNITTEST y
   CONFIG_OF_DYNAMIC y
   CONFIG_OF_RESOLVE y

If CONFIG_OF_DYNAMIC is enabled then of_node_release() detects an
attempt to release a node that is still attached to the device tree.

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>

diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
index 0bdfcdcbf7a5a4265ecb2be8570015c0e9d08e38..bb626120296ff23dfd60cc59428d3fb4d4c92fe9 100644 (file)
--- a/drivers/usb/chipidea/ci_hdrc_msm.c
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -251,7 +251,7 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev)
        if (ret)
                goto err_mux;
 
-       ulpi_node = of_find_node_by_name(pdev->dev.of_node, "ulpi");
+       ulpi_node = of_find_node_by_name(of_node_get(pdev->dev.of_node), "ulpi");
        if (ulpi_node) {
                phy_node = of_get_next_available_child(ulpi_node, NULL);
                ci->hsic = of_device_is_compatible(phy_node, "qcom,usb-hsic-phy");