Unclaim PCI slot if driver probing fails.
Otherwise no subsequent driver will be able to claim this pci slot. Example for this: fbdev tries to claim, but framebuffer device is not available. Later on VESA cannot claim the device.
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@ -97,6 +97,7 @@ extern _X_EXPORT Bool VTSwitchEnabled; /* kbd driver */
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extern _X_EXPORT Bool xf86CheckPciSlot( const struct pci_device * );
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extern _X_EXPORT int xf86ClaimPciSlot( struct pci_device *, DriverPtr drvp,
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int chipset, GDevPtr dev, Bool active);
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extern _X_EXPORT void xf86UnclaimPciSlot(struct pci_device *);
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extern _X_EXPORT Bool xf86ParsePciBusString(const char *busID, int *bus, int *device,
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int *func);
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extern _X_EXPORT Bool xf86ComparePciBusString(const char *busID, int bus, int device, int func);
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@ -495,7 +495,8 @@ probe_devices_from_device_sections(DriverPtr drvp)
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if ((*drvp->PciProbe)(drvp, entry, pPci,
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devices[j].match_data)) {
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foundScreen = TRUE;
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}
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} else
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xf86UnclaimPciSlot(pPci);
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}
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break;
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@ -752,6 +752,25 @@ xf86ClaimPciSlot(struct pci_device * d, DriverPtr drvp,
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return -1;
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}
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/*
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* Unclaim PCI slot, e.g. if probing failed, so that a different driver can claim.
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*/
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void
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xf86UnclaimPciSlot(struct pci_device *d)
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{
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int i;
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for (i = 0; i < xf86NumEntities; i++) {
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const EntityPtr p = xf86Entities[i];
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if ((p->bus.type == BUS_PCI) && (p->bus.id.pci == d)) {
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/* Probably the slot should be deallocated? */
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p->bus.type = BUS_NONE;
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return;
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}
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}
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}
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/*
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* Parse a BUS ID string, and return the PCI bus parameters if it was
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* in the correct format for a PCI bus id.
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