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authorJisheng Zhang <jszhang@marvell.com>2015-04-03 21:17:05 +0800
committerBjorn Helgaas <bhelgaas@google.com>2015-04-09 14:27:06 -0500
commit873581698d391ff070fc1eb8fb298c85e873c07c (patch)
treef81737ee89b76d564a316d7be9df0d5865946081 /drivers/pci
parentc517d838eb7d07bbe9507871fab3931deccff539 (diff)
PCI: versatile: Check for devm_ioremap_resource() failures
Check for failure of devm_ioremap_resource(). devm_ioremap_resource() validates the resource it receives, so if we check for devm_ioremap_resource() failure, we need not check for failure of the preceding platform_get_resource(). [bhelgaas: changelog] Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/host/pci-versatile.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c
index 1ec694a52379..b1caaea740fe 100644
--- a/drivers/pci/host/pci-versatile.c
+++ b/drivers/pci/host/pci-versatile.c
@@ -138,19 +138,19 @@ static int versatile_pci_probe(struct platform_device *pdev)
LIST_HEAD(pci_res);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
versatile_pci_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(versatile_pci_base))
+ return PTR_ERR(versatile_pci_base);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (!res)
- return -ENODEV;
versatile_cfg_base[0] = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(versatile_cfg_base[0]))
+ return PTR_ERR(versatile_cfg_base[0]);
res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
- if (!res)
- return -ENODEV;
versatile_cfg_base[1] = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(versatile_cfg_base[1]))
+ return PTR_ERR(versatile_cfg_base[1]);
ret = versatile_pci_parse_request_of_pci_ranges(&pdev->dev, &pci_res);
if (ret)