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authorJingoo Han <jg1.han@samsung.com>2013-12-11 16:28:23 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-18 16:36:10 -0800
commit3e2e714e7d6cf85ec799f6b1105972f7962f3c80 (patch)
tree7dd8d319abfe97f1b73917e0fcbd287158411b34
parentac8d81f36c93315a3819105a2701b5a5112e218b (diff)
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USB: ohci-ppc-of: Use devm_ioremap_resource()
Use devm_ioremap_resource() to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/host/ohci-ppc-of.c22
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c
index 2ee178705f87..965e3e9e688a 100644
--- a/drivers/usb/host/ohci-ppc-of.c
+++ b/drivers/usb/host/ohci-ppc-of.c
@@ -115,10 +115,9 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op)
hcd->rsrc_start = res.start;
hcd->rsrc_len = resource_size(&res);
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- dev_err(&op->dev, "%s: request_mem_region failed\n",
- __FILE__);
- rv = -EBUSY;
+ hcd->regs = devm_ioremap_resource(&op->dev, &res);
+ if (IS_ERR(hcd->regs)) {
+ rv = PTR_ERR(hcd->regs);
goto err_rmr;
}
@@ -127,14 +126,7 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op)
dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n",
__FILE__);
rv = -EBUSY;
- goto err_irq;
- }
-
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs) {
- dev_err(&op->dev, "%s: ioremap failed\n", __FILE__);
- rv = -ENOMEM;
- goto err_ioremap;
+ goto err_rmr;
}
ohci = hcd_to_ohci(hcd);
@@ -178,11 +170,7 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op)
pr_debug("%s: cannot get ehci offset from fdt\n", __FILE__);
}
- iounmap(hcd->regs);
-err_ioremap:
irq_dispose_mapping(irq);
-err_irq:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err_rmr:
usb_put_hcd(hcd);
@@ -197,9 +185,7 @@ static int ohci_hcd_ppc_of_remove(struct platform_device *op)
usb_remove_hcd(hcd);
- iounmap(hcd->regs);
irq_dispose_mapping(hcd->irq);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);