PCI: mvebu: Use of_get_available_child_count()

Rather than open-coding of_get_available_child_count(), use the provided
helper instead.

Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> (Armada XP GP)
Tested-by: Andrew Lunn <andrew@lunn.ch> (Kirkwood DIR665)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

1 files changed, 3 insertions, 8 deletions

diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 0d9f3eae4315..0ed14f477bf8 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -933,7 +933,7 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
         struct mvebu_pcie *pcie;
         struct device_node *np = pdev->dev.of_node;
         struct device_node *child;
-        int i, ret;
+        int num, i, ret;
 
         pcie = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_pcie),
                             GFP_KERNEL);
@@ -969,14 +969,9 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
                 return ret;
         }
 
-        i = 0;
-        for_each_child_of_node(pdev->dev.of_node, child) {
-                if (!of_device_is_available(child))
-                        continue;
-                i++;
-        }
+        num = of_get_available_child_count(pdev->dev.of_node);
 
-        pcie->ports = devm_kzalloc(&pdev->dev, i *
+        pcie->ports = devm_kzalloc(&pdev->dev, num *
                                    sizeof(struct mvebu_pcie_port),
                                    GFP_KERNEL);
         if (!pcie->ports)