drivers/ide/au1xxx-ide.c: use resource_size()

Use resource_size() for {request/release}_mem_region and ioremap.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c
index 58121bd6c115..87cef0c440ad 100644
--- a/drivers/ide/au1xxx-ide.c
+++ b/drivers/ide/au1xxx-ide.c
@@ -532,14 +532,13 @@ static int au_ide_probe(struct platform_device *dev)
                 goto out;
         }
 
-        if (!request_mem_region(res->start, res->end - res->start + 1,
-                                dev->name)) {
+        if (!request_mem_region(res->start, resource_size(res), dev->name)) {
                 pr_debug("%s: request_mem_region failed\n", DRV_NAME);
                 ret =  -EBUSY;
                 goto out;
         }
 
-        ahwif->regbase = (u32)ioremap(res->start, res->end - res->start + 1);
+        ahwif->regbase = (u32)ioremap(res->start, resource_size(res));
         if (ahwif->regbase == 0) {
                 ret = -ENOMEM;
                 goto out;
@@ -575,7 +574,7 @@ static int au_ide_remove(struct platform_device *dev)
         iounmap((void *)ahwif->regbase);
 
         res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-        release_mem_region(res->start, res->end - res->start + 1);
+        release_mem_region(res->start, resource_size(res));
 
         return 0;
 }