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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-16 20:33:41 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-16 20:33:41 +0200 |
| commit | c1da678b5b4d8ce7836ed1ded80109d1db37efe0 (patch) | |
| tree | 8f8f0421b487cc91a58186e78fec45a9512fc224 /drivers | |
| parent | 01397012b3129147890bb116431d5a794dfc3990 (diff) | |
| download | lwn-c1da678b5b4d8ce7836ed1ded80109d1db37efe0.tar.gz lwn-c1da678b5b4d8ce7836ed1ded80109d1db37efe0.zip | |
ide: tighten checks on PCI BARs in ide_hwif_configure()
Alan has fixed PCI layer handling of PCI IDE in Compatibility mode so
PCI BAR 0/1 (and/or 2/3) content reported by kernel should never be zero.
Tighten checks on PCI BARs and also fix printk() message while on it.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ide/setup-pci.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index 3dea5a59626e..166211f53f17 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -319,18 +319,18 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, ctl = pci_resource_start(dev, 2*port+1); base = pci_resource_start(dev, 2*port); - if ((ctl && !base) || (base && !ctl)) { - printk(KERN_ERR "%s: inconsistent baseregs (BIOS) " - "for port %d, skipping\n", d->name, port); - return NULL; - } - } - if (!ctl) { + } else { /* Use default values */ ctl = port ? 0x374 : 0x3f4; base = port ? 0x170 : 0x1f0; } + if (!base || !ctl) { + printk(KERN_ERR "%s: bad PCI BARs for port %d, skipping\n", + d->name, port); + return NULL; + } + hwif = ide_find_port_slot(d); if (hwif == NULL) { printk(KERN_ERR "%s: too many IDE interfaces, no room in " |