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[Bug 1000050] New: Call to cyg_pci_find_device results in infinite loop


http://bugs.ecos.sourceware.org/show_bug.cgi?id=1000050

           Summary: Call to cyg_pci_find_device results in infinite loop
           Product: eCos
           Version: 2.0
          Platform: pc (i386 PC target)
        OS/Version: HostOS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: normal
         Component: PCI
        AssignedTo: gary@mlbassoc.com
        ReportedBy: Kevin_Lemay@agilent.com
         QAContact: ecos-bugs@sources.redhat.com


Setting the CYGSEM_HAL_I386_PC_LARGE_PCI_SPACE to enabled causes an infinite
loop when calling the above function.

Disabling the flag (as defaulted) causes normal operation. 

Target PC: HP Kayak XU running redboot delivered with 2.0

The device ID returned from cyg_pci_find_next (pci.c) was 65536 immediately
before the overflow. Bus = 1, dev=0, func = 0. These values where correctly
decoded when the cyg_pci_find_next was entered. However, when the next device
was returned, the devid was set to CYG_PCI_NULL_DEVID. This causes the
cyg_pci_find_next to re-start the scan on the subsequent call causing an
infinite loop.



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