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Reject too large OHCI version number.

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Invalid OHCI version indicates OHCI registers are not mapped
correctly in PCI or CardBus layer.
This commit is contained in:
simokawa 2003-10-31 05:05:12 +00:00
parent 1670caf40a
commit fa2d8db5b8
1 changed files with 5 additions and 4 deletions
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9
sys/dev/firewire/fwohci.c
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@ -585,7 +585,7 @@ fwohci_reset(struct fwohci_softc *sc, device_t dev)
int
fwohci_init(struct fwohci_softc *sc, device_t dev)
{
int i;
int i, mver;
u_int32_t reg;
u_int8_t ui[8];
@ -593,11 +593,12 @@ fwohci_init(struct fwohci_softc *sc, device_t dev)
TASK_INIT(&sc->fwohci_task_complete, 0, fwohci_complete, sc);
#endif
/* OHCI version */
reg = OREAD(sc, OHCI_VERSION);
mver = (reg >> 16) & 0xff;
device_printf(dev, "OHCI version %x.%x (ROM=%d)\n",
(reg>>16) & 0xff, reg & 0xff, (reg>>24) & 1);
if (((reg>>16) & 0xff) < 1) {
mver, reg & 0xff, (reg>>24) & 1);
if (mver < 1 || mver > 9) {
device_printf(dev, "invalid OHCI version\n");
return (ENXIO);
}