From d86a83f4acbded4095a632e861183d117ec7405a Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Fri, 18 Sep 2009 09:14:46 +0200 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/imx_udc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c index c52a681f376..01ee0b9bc95 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);