Merge tag 'pci-v5.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
[sfrench/cifs-2.6.git] / drivers / pci / controller / dwc / pci-imx6.c
index 5ae75f25c6fc6d7fa6b9e9acb2885dede16ac459..3d627f94a16664d57a7eee76fc69dfdecadda19e 100644 (file)
@@ -351,6 +351,9 @@ static int imx6_pcie_attach_pd(struct device *dev)
        imx6_pcie->pd_pcie = dev_pm_domain_attach_by_name(dev, "pcie");
        if (IS_ERR(imx6_pcie->pd_pcie))
                return PTR_ERR(imx6_pcie->pd_pcie);
+       /* Do nothing when power domain missing */
+       if (!imx6_pcie->pd_pcie)
+               return 0;
        link = device_link_add(dev, imx6_pcie->pd_pcie,
                        DL_FLAG_STATELESS |
                        DL_FLAG_PM_RUNTIME |
@@ -364,13 +367,13 @@ static int imx6_pcie_attach_pd(struct device *dev)
        if (IS_ERR(imx6_pcie->pd_pcie_phy))
                return PTR_ERR(imx6_pcie->pd_pcie_phy);
 
-       device_link_add(dev, imx6_pcie->pd_pcie_phy,
+       link = device_link_add(dev, imx6_pcie->pd_pcie_phy,
                        DL_FLAG_STATELESS |
                        DL_FLAG_PM_RUNTIME |
                        DL_FLAG_RPM_ACTIVE);
-       if (IS_ERR(link)) {
-               dev_err(dev, "Failed to add device_link to pcie_phy pd: %ld\n", PTR_ERR(link));
-               return PTR_ERR(link);
+       if (!link) {
+               dev_err(dev, "Failed to add device_link to pcie_phy pd.\n");
+               return -EINVAL;
        }
 
        return 0;