PCI: exynos: Initialize elbi_base even when using PHY framework

Even when using the PHY framework, we need the elbi_base.  Before this
patch, we didn't initialize elbi_base, which caused NULL pointer
dereferences later.

Fixes: e7cd7ef58e1f ("PCI: exynos: Support the PHY generic framework")
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/dwc/pci-exynos.c b/drivers/pci/dwc/pci-exynos.c
index 993b650..44f774c 100644 (file)
--- a/drivers/pci/dwc/pci-exynos.c
+++ b/drivers/pci/dwc/pci-exynos.c
@@ -132,10 +132,6 @@ static int exynos5440_pcie_get_mem_resources(struct platform_device *pdev,
        struct device *dev = pci->dev;
        struct resource *res;
 
-       /* If using the PHY framework, doesn't need to get other resource */
-       if (ep->using_phy)
-               return 0;
-
        ep->mem_res = devm_kzalloc(dev, sizeof(*ep->mem_res), GFP_KERNEL);
        if (!ep->mem_res)
                return -ENOMEM;
@@ -145,6 +141,10 @@ static int exynos5440_pcie_get_mem_resources(struct platform_device *pdev,
        if (IS_ERR(ep->mem_res->elbi_base))
                return PTR_ERR(ep->mem_res->elbi_base);
 
+       /* If using the PHY framework, doesn't need to get other resource */
+       if (ep->using_phy)
+               return 0;
+
        res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
        ep->mem_res->phy_base = devm_ioremap_resource(dev, res);
        if (IS_ERR(ep->mem_res->phy_base))