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authorBjorn Helgaas <bhelgaas@google.com>2016-05-29 01:31:26 +0200
committerBjorn Helgaas <bhelgaas@google.com>2016-06-25 14:44:24 +0200
commitda6163ad3aae627d0b12ae58300c5d02d8ee613e (patch)
treee923210ad063aa2c10e1bddb2566e15d0cc4c976
parentPCI: versatile: Request host bridge window resources with core function (diff)
downloadlinux-da6163ad3aae627d0b12ae58300c5d02d8ee613e.tar.xz
linux-da6163ad3aae627d0b12ae58300c5d02d8ee613e.zip
PCI: versatile: 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. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
-rw-r--r--drivers/pci/host/pci-versatile.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c
index 273edaca8f49..f234405770ab 100644
--- a/drivers/pci/host/pci-versatile.c
+++ b/drivers/pci/host/pci-versatile.c
@@ -90,11 +90,9 @@ static int versatile_pci_parse_request_of_pci_ranges(struct device *dev,
switch (resource_type(res)) {
case IORESOURCE_IO:
err = pci_remap_iospace(res, iobase);
- if (err) {
+ if (err)
dev_warn(dev, "error %d: failed to map resource %pR\n",
err, res);
- continue;
- }
break;
case IORESOURCE_MEM:
res_valid |= !(res->flags & IORESOURCE_PREFETCH);
@@ -104,19 +102,14 @@ static int versatile_pci_parse_request_of_pci_ranges(struct device *dev,
mem++;
break;
- case IORESOURCE_BUS:
- 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:
pci_free_resource_list(res);