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| author | Tobias Klauser <tklauser@distanz.ch> | 2009-09-18 09:14:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-10-09 13:52:07 -0700 |
| commit | d86a83f4acbded4095a632e861183d117ec7405a (patch) | |
| tree | 2c0bb415c03edcb9452e04b094c3b6f820a50a74 /drivers/usb | |
| parent | 2f13612a86dd785d581e29aed4db2fb98ba507ca (diff) | |
| download | linux-d86a83f4acbded4095a632e861183d117ec7405a.tar.gz linux-d86a83f4acbded4095a632e861183d117ec7405a.tar.bz2 linux-d86a83f4acbded4095a632e861183d117ec7405a.zip | |
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.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c index c52a681f376c..01ee0b9bc957 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); |