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| author | Tejun Heo <htejun@gmail.com> | 2007-08-06 18:36:23 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-12 14:55:30 -0400 |
| commit | f58229f8060055b08b34008ea08f31de1e2f003c (patch) | |
| tree | 6ca5ef546671cb975ef3632fb032c238eaf1bb4c /drivers/ata/pata_pdc2027x.c | |
| parent | 9af5c9c97dc9d599281778864c72b385f0c63341 (diff) | |
| download | kernel-common-f58229f8060055b08b34008ea08f31de1e2f003c.tar.gz kernel-common-f58229f8060055b08b34008ea08f31de1e2f003c.tar.bz2 kernel-common-f58229f8060055b08b34008ea08f31de1e2f003c.zip | |
libata-link: implement and use link/device iterators
Multiple links and different number of devices per link should be
considered to iterate over links and devices. This patch implements
and uses link and device iterators - ata_port_for_each_link() and
ata_link_for_each_dev() - and ata_link_max_devices().
This change makes a lot of functions iterate over only possible
devices instead of from dev 0 to dev ATA_MAX_DEVICES. All such
changes have been examined and nothing should be broken.
While at it, add a separating comment before device helpers to
distinguish them better from link helpers and others.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_pdc2027x.c')
| -rw-r--r-- | drivers/ata/pata_pdc2027x.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c index fa780509a1dc..83c90cabc7ff 100644 --- a/drivers/ata/pata_pdc2027x.c +++ b/drivers/ata/pata_pdc2027x.c @@ -479,15 +479,14 @@ static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev) */ static int pdc2027x_set_mode(struct ata_port *ap, struct ata_device **r_failed) { - int i; - - i = ata_do_set_mode(ap, r_failed); - if (i < 0) - return i; + struct ata_device *dev; + int rc; - for (i = 0; i < ATA_MAX_DEVICES; i++) { - struct ata_device *dev = &ap->link.device[i]; + rc = ata_do_set_mode(ap, r_failed); + if (rc < 0) + return rc; + ata_link_for_each_dev(dev, &ap->link) { if (ata_dev_enabled(dev)) { pdc2027x_set_piomode(ap, dev); |