PCI: mvebu: Convert to use devm_ioremap_resource

Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().

While at it, modify mvebu_pcie_map_registers() to propagate error code.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>

diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 13a633b..8fc2a82 100644 (file)
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -750,9 +750,9 @@ mvebu_pcie_map_registers(struct platform_device *pdev,
 
        ret = of_address_to_resource(np, 0, &regs);
        if (ret)
-               return NULL;
+               return ERR_PTR(ret);
 
-       return devm_request_and_ioremap(&pdev->dev, &regs);
+       return devm_ioremap_resource(&pdev->dev, &regs);
 }
 
 static int __init mvebu_pcie_probe(struct platform_device *pdev)
@@ -842,9 +842,10 @@ static int __init mvebu_pcie_probe(struct platform_device *pdev)
                        continue;
 
                port->base = mvebu_pcie_map_registers(pdev, child, port);
-               if (!port->base) {
+               if (IS_ERR(port->base)) {
                        dev_err(&pdev->dev, "PCIe%d.%d: cannot map registers\n",
                                port->port, port->lane);
+                       port->base = NULL;
                        continue;
                }