diff options
| author |   Julia Lawall <julia@diku.dk> | 2009-09-23 15:57:26 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-24 07:21:04 -0700 |
| commit | 30a61fff3a2b19506c66ea81fecb6a7747af3d47 (patch) | |
| tree | 541f2337616caa095e517af0d4a0549a174818bd /drivers/edac/cpc925_edac.c | |
| parent | edac: mpc85xx add mpc83xx support (diff) | |
| download | linux-dev-30a61fff3a2b19506c66ea81fecb6a7747af3d47.tar.xz linux-dev-30a61fff3a2b19506c66ea81fecb6a7747af3d47.zip | |
edac: fix resource size calculation
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: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/edac/cpc925_edac.c')
| -rw-r--r-- | drivers/edac/cpc925_edac.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/edac/cpc925_edac.c b/drivers/edac/cpc925_edac.c index 8c54196b5aba..3d50274f1348 100644 --- a/drivers/edac/cpc925_edac.c +++ b/drivers/edac/cpc925_edac.c @@ -885,14 +885,14 @@ static int __devinit cpc925_probe(struct platform_device *pdev) if (!devm_request_mem_region(&pdev->dev, r->start, - r->end - r->start + 1, + resource_size(r), pdev->name)) { cpc925_printk(KERN_ERR, "Unable to request mem region\n"); res = -EBUSY; goto err1; } - vbase = devm_ioremap(&pdev->dev, r->start, r->end - r->start + 1); + vbase = devm_ioremap(&pdev->dev, r->start, resource_size(r)); if (!vbase) { cpc925_printk(KERN_ERR, "Unable to ioremap device\n"); res = -ENOMEM; @@ -953,7 +953,7 @@ err3: cpc925_mc_exit(mci); edac_mc_free(mci); err2: - devm_release_mem_region(&pdev->dev, r->start, r->end-r->start+1); + devm_release_mem_region(&pdev->dev, r->start, resource_size(r)); err1: devres_release_group(&pdev->dev, cpc925_probe); out: |