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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-10 22:39:26 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-10 22:39:26 +0200
commit7e59ea21aab1a91ca31bc64c7d3035ebdbd336d1 (patch)
tree6cdbc937687dbba316f22e2b68cb036511fce951 /drivers/ide/pci/via82cxxx.c
parentide: remove needless drive->present checks from device drivers (diff)
downloadlinux-7e59ea21aab1a91ca31bc64c7d3035ebdbd336d1.tar.xz
linux-7e59ea21aab1a91ca31bc64c7d3035ebdbd336d1.zip
ide: check drive->present in ide_get_paired_drive()
* Change ide_get_paired_drive() to return NULL if peer device is not present and update all users accordingly. While at it: * ide_get_paired_drive() -> ide_get_pair_dev() * Use ide_get_pair_dev() in cs5530.c, sc1200.c and via82cxxx.c. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci/via82cxxx.c')
-rw-r--r--drivers/ide/pci/via82cxxx.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index 94fb9ab3223f..9cb531dc905a 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -154,7 +154,7 @@ static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing)
static void via_set_drive(ide_drive_t *drive, const u8 speed)
{
ide_hwif_t *hwif = drive->hwif;
- ide_drive_t *peer = hwif->drives + (~drive->dn & 1);
+ ide_drive_t *peer = ide_get_pair_dev(drive);
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct ide_host *host = pci_get_drvdata(dev);
struct via82cxxx_dev *vdev = host->host_priv;
@@ -173,7 +173,7 @@ static void via_set_drive(ide_drive_t *drive, const u8 speed)
ide_timing_compute(drive, speed, &t, T, UT);
- if (peer->present) {
+ if (peer) {
ide_timing_compute(peer, peer->current_speed, &p, T, UT);
ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT);
}