USB: ohci-s3c2410: use resource_size()
authorJingoo Han <jg1.han@samsung.com>
Thu, 14 Apr 2011 12:09:16 +0000 (21:09 +0900)
committerGreg Kroah-Hartman <gregkh@suse.de>
Sat, 30 Apr 2011 00:24:37 +0000 (17:24 -0700)
This patch uses the resource_size help function instead of
manually calculating the resource size. It can reduce the chance
of introducing off-by-one errors.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/host/ohci-s3c2410.c

index 16ec7da9237c22a5edeeeb013f70e87e9b0f0966..5837d218050dab4cc944a6ea8846c6db055ed62f 100644 (file)
@@ -353,7 +353,7 @@ static int usb_hcd_s3c2410_probe (const struct hc_driver *driver,
                return -ENOMEM;
 
        hcd->rsrc_start = dev->resource[0].start;
-       hcd->rsrc_len   = dev->resource[0].end - dev->resource[0].start + 1;
+       hcd->rsrc_len   = resource_size(&dev->resource[0]);
 
        if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
                dev_err(&dev->dev, "request_mem_region failed\n");