diff options
| author | Julia Lawall <julia@diku.dk> | 2009-08-06 16:05:08 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2009-09-11 02:25:58 -0400 |
| commit | 041b5eac254107cd3ba60034c38a411531cc64ee (patch) | |
| tree | a1abcfd2b97985ca06504c493fda9cd4123307aa /drivers/ata/pata_platform.c | |
| parent | f90f613c3ed7381209de8aa36458442b5130170b (diff) | |
drivers/ata: 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>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_platform.c')
| -rw-r--r-- | drivers/ata/pata_platform.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c index d8d743af3225..3f6ebc6c665a 100644 --- a/drivers/ata/pata_platform.c +++ b/drivers/ata/pata_platform.c @@ -151,14 +151,14 @@ int __devinit __pata_platform_probe(struct device *dev, */ if (mmio) { ap->ioaddr.cmd_addr = devm_ioremap(dev, io_res->start, - io_res->end - io_res->start + 1); + resource_size(io_res)); ap->ioaddr.ctl_addr = devm_ioremap(dev, ctl_res->start, - ctl_res->end - ctl_res->start + 1); + resource_size(ctl_res)); } else { ap->ioaddr.cmd_addr = devm_ioport_map(dev, io_res->start, - io_res->end - io_res->start + 1); + resource_size(io_res)); ap->ioaddr.ctl_addr = devm_ioport_map(dev, ctl_res->start, - ctl_res->end - ctl_res->start + 1); + resource_size(ctl_res)); } if (!ap->ioaddr.cmd_addr || !ap->ioaddr.ctl_addr) { dev_err(dev, "failed to map IO/CTL base\n"); |