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| author | Sergei Shtylyov <sshtylyov@ru.mvista.com> | 2008-04-26 17:36:31 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-26 17:36:31 +0200 |
| commit | 1baccff8a5823b51d7bf2740ef3ef17e06bfa7e2 (patch) | |
| tree | bae9585842faf07f8c5f05f19df43a0d79241f51 /drivers/ide/setup-pci.c | |
| parent | ide/Kconfig: BLK_DEV_4DRIVES should be a tristate (diff) | |
| download | linux-1baccff8a5823b51d7bf2740ef3ef17e06bfa7e2.tar.xz linux-1baccff8a5823b51d7bf2740ef3ef17e06bfa7e2.zip | |
ide: make ide_pci_check_iomem() actually work
This function didn't actually check if a given BAR is in I/O space because of
using the bogus PCI_BASE_ADDRESS_IO_MASK (which equals ~3) to test the resource
flags instead of IORESOURCE_IO -- fix this, make ide_hwif_configure() check the
results failing if necessary, and move the printk() call to the failure path.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/setup-pci.c')
| -rw-r--r-- | drivers/ide/setup-pci.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index f7ede0e42881..2dc3835478ec 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -301,11 +301,12 @@ static int ide_pci_configure(struct pci_dev *dev, const struct ide_port_info *d) * @d: IDE port info * @bar: BAR number * - * Checks if a BAR is configured and points to MMIO space. If so - * print an error and return an error code. Otherwise return 0 + * Checks if a BAR is configured and points to MMIO space. If so, + * return an error code. Otherwise return 0 */ -static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, int bar) +static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, + int bar) { ulong flags = pci_resource_flags(dev, bar); @@ -313,14 +314,11 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info * if (!flags || pci_resource_len(dev, bar) == 0) return 0; - /* I/O space */ - if(flags & PCI_BASE_ADDRESS_IO_MASK) + /* I/O space */ + if (flags & IORESOURCE_IO) return 0; /* Bad */ - printk(KERN_ERR "%s: IO baseregs (BIOS) are reported " - "as MEM, report to " - "<andre@linux-ide.org>.\n", d->name); return -EINVAL; } @@ -348,9 +346,12 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, struct hw_regs_s hw; if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { - /* Possibly we should fail if these checks report true */ - ide_pci_check_iomem(dev, d, 2*port); - ide_pci_check_iomem(dev, d, 2*port+1); + if (ide_pci_check_iomem(dev, d, 2 * port) || + ide_pci_check_iomem(dev, d, 2 * port + 1)) { + printk(KERN_ERR "%s: I/O baseregs (BIOS) are reported " + "as MEM for port %d!\n", d->name, port); + return NULL; + } ctl = pci_resource_start(dev, 2*port+1); base = pci_resource_start(dev, 2*port); |