Fixing mach64 driver bailing out on ia64
Mach64 driver bails out on ia64 because it cannot map device memory. It turns out that some bogus and unneeded code attempts to find the root bridge of the device and fails to do so proberly as there this host-to-pci bridge is not existant. This code has been around for years although it completely unclear what it had been intended for. Fixing this by eliminating the bogus code.
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@ -570,9 +570,7 @@ linuxMapPci(int ScreenNum, int Flags, PCITAG Tag,
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xf86InitVidMem();
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pPCI = xf86GetPciHostConfigFromTag(Tag);
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if (((fd = linuxPciOpenFile(pPCI ? pPCI->tag : 0,FALSE)) < 0) ||
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if (((fd = linuxPciOpenFile(Tag ,FALSE)) < 0) ||
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(ioctl(fd, mmap_ioctl, 0) < 0))
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break;
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