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authorTobias Klauser <tklauser@distanz.ch>2009-09-18 09:14:46 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-10-09 13:52:07 -0700
commitd86a83f4acbded4095a632e861183d117ec7405a (patch)
tree2c0bb415c03edcb9452e04b094c3b6f820a50a74 /drivers/usb
parent2f13612a86dd785d581e29aed4db2fb98ba507ca (diff)
downloadop-kernel-dev-d86a83f4acbded4095a632e861183d117ec7405a.zip
op-kernel-dev-d86a83f4acbded4095a632e861183d117ec7405a.tar.gz
USB: gadget: imx_udc: Use resource size
Use the resource_size function instead of manually calculating the resource size. This reduces the chance of introducing off-by-one errors. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/imx_udc.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index c52a681..01ee0b9 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -1402,7 +1402,8 @@ static int __init imx_udc_probe(struct platform_device *pdev)
struct clk *clk;
void __iomem *base;
int ret = 0;
- int i, res_size;
+ int i;
+ resource_size_t res_size;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
@@ -1416,7 +1417,7 @@ static int __init imx_udc_probe(struct platform_device *pdev)
return -ENODEV;
}
- res_size = res->end - res->start + 1;
+ res_size = resource_size(res);
if (!request_mem_region(res->start, res_size, res->name)) {
dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n",
res_size, res->start);
@@ -1527,8 +1528,7 @@ static int __exit imx_udc_remove(struct platform_device *pdev)
clk_disable(imx_usb->clk);
iounmap(imx_usb->base);
- release_mem_region(imx_usb->res->start,
- imx_usb->res->end - imx_usb->res->start + 1);
+ release_mem_region(imx_usb->res->start, resource_size(imx_usb->res));
if (pdata->exit)
pdata->exit(&pdev->dev);
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