PCI: altera: Simplify host bridge window iteration

The switch is the only statement in the resource_list_for_each_entry()
loop, so remove unnecessary "continue" statements in the switch.  Simplify
checking for the required non-prefetchable memory aperture.  Inline
altera_pcie_release_of_pci_ranges(), which is only called once.

No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/host/pcie-altera.c b/drivers/pci/host/pcie-altera.c
index b97abbc..cf20c67 100644 (file)
--- a/drivers/pci/host/pcie-altera.c
+++ b/drivers/pci/host/pcie-altera.c
@@ -415,11 +415,6 @@ static void altera_pcie_isr(struct irq_desc *desc)
        chained_irq_exit(chip, desc);
 }
 
-static void altera_pcie_release_of_pci_ranges(struct altera_pcie *pcie)
-{
-       pci_free_resource_list(&pcie->resources);
-}
-
 static int altera_pcie_parse_request_of_pci_ranges(struct altera_pcie *pcie)
 {
        int err, res_valid = 0;
@@ -439,25 +434,18 @@ static int altera_pcie_parse_request_of_pci_ranges(struct altera_pcie *pcie)
        resource_list_for_each_entry(win, &pcie->resources) {
                struct resource *res = win->res;
 
-               switch (resource_type(res)) {
-               case IORESOURCE_MEM:
+               if (resource_type(res) == IORESOURCE_MEM)
                        res_valid |= !(res->flags & IORESOURCE_PREFETCH);
-                       break;
-               default:
-                       continue;
-               }
        }
 
-       if (!res_valid) {
-               dev_err(dev, "non-prefetchable memory resource required\n");
-               err = -EINVAL;
-               goto out_release_res;
-       }
+       if (res_valid)
+               return 0;
 
-       return 0;
+       dev_err(dev, "non-prefetchable memory resource required\n");
+       err = -EINVAL;
 
 out_release_res:
-       altera_pcie_release_of_pci_ranges(pcie);
+       pci_free_resource_list(&pcie->resources);
        return err;
 }