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pata_sis: Fix oops on boot

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A small number of SiS setups require special handling (not many judging
by how long this dumb bug survived). A couple of Fedora 7 devel testers
hit an Oops on pata_sis loading which is caused by terminal confusion
between chipset as 'the chipset we have found' and chipset as 'array
iterator'

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan Cox 2007-04-19 11:09:52 +01:00 committed by Jeff Garzik
parent 6f29e35e2d
commit f3769e9db1
1 changed files with 6 additions and 4 deletions
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10
drivers/ata/pata_sis.c
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@ -878,6 +878,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
struct ata_port_info *port;
struct pci_dev *host = NULL;
struct sis_chipset *chipset = NULL;
struct sis_chipset *sets;
static struct sis_chipset sis_chipsets[] = {
@ -932,10 +933,11 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
/* We have to find the bridge first */
for (chipset = &sis_chipsets[0]; chipset->device; chipset++) {
host = pci_get_device(PCI_VENDOR_ID_SI, chipset->device, NULL);
for (sets = &sis_chipsets[0]; sets->device; sets++) {
host = pci_get_device(PCI_VENDOR_ID_SI, sets->device, NULL);
if (host != NULL) {
if (chipset->device == 0x630) { /* SIS630 */
chipset = sets; /* Match found */
if (sets->device == 0x630) { /* SIS630 */
u8 host_rev;
pci_read_config_byte(host, PCI_REVISION_ID, &host_rev);
if (host_rev >= 0x30) /* 630 ET */
@ -946,7 +948,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
}
/* Look for concealed bridges */
if (host == NULL) {
if (chipset == NULL) {
/* Second check */
u32 idemisc;
u16 trueid;