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authorJulia Lawall <julia@diku.dk>2009-09-15 17:18:13 +0200
committerJean Delvare <khali@linux-fr.org>2009-09-15 17:18:13 +0200
commit86855b0c1fd75338c67cabbf85d64d033612c47b (patch)
tree69b20b9059bc9d317fcb68a77ce988acce8577ef /drivers/hwmon/pc87427.c
parent6055fae8aceee41471edfd1876e5617d16e028fe (diff)
downloadlinux-86855b0c1fd75338c67cabbf85d64d033612c47b.tar.gz
hwmon: Use resource_size
Use the function resource_size, which reduces the chance of introducing
off-by-one errors in calculating the resource size.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
struct resource *res;
@@

- (res->end - res->start) + 1
+ resource_size(res)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon/pc87427.c')
-rw-r--r--drivers/hwmon/pc87427.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c
index 4e0de0e06d78..3170b26d2443 100644
--- a/drivers/hwmon/pc87427.c
+++ b/drivers/hwmon/pc87427.c
@@ -435,7 +435,7 @@ static int __devinit pc87427_probe(struct platform_device *pdev)
 	/* This will need to be revisited when we add support for
 	   temperature and voltage monitoring. */
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
-	if (!request_region(res->start, res->end - res->start + 1, DRVNAME)) {
+	if (!request_region(res->start, resource_size(res), DRVNAME)) {
 		err = -EBUSY;
 		dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n",
 			(unsigned long)res->start, (unsigned long)res->end);
@@ -475,7 +475,7 @@ exit_remove_files:
 		sysfs_remove_group(&pdev->dev.kobj, &pc87427_group_fan[i]);
 	}
 exit_release_region:
-	release_region(res->start, res->end - res->start + 1);
+	release_region(res->start, resource_size(res));
 exit_kfree:
 	platform_set_drvdata(pdev, NULL);
 	kfree(data);
@@ -500,7 +500,7 @@ static int __devexit pc87427_remove(struct platform_device *pdev)
 	kfree(data);
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
-	release_region(res->start, res->end - res->start + 1);
+	release_region(res->start, resource_size(res));
 
 	return 0;
 }