42 lines
1.3 KiB
Diff
42 lines
1.3 KiB
Diff
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--- ./hw/xfree86/os-support/bus/linuxPci.c.orig 2007-03-14 09:37:44.000000000 -0600
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+++ ./hw/xfree86/os-support/bus/linuxPci.c 2007-03-14 09:41:01.000000000 -0600
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@@ -634,28 +634,28 @@
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ADDRESS Base, unsigned long Size)
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{
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int domain = xf86GetPciDomain(Tag);
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- int fd;
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+ int fd = -1;
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pointer addr;
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/*
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* We use /proc/bus/pci on non-legacy addresses or if the Linux sysfs
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* legacy_mem interface is unavailable.
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*/
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- if (Base > 1024*1024)
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- return linuxMapPci(ScreenNum, Flags, Tag, Base, Size,
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+ if (Base >= 1024*1024)
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+ addr = linuxMapPci(ScreenNum, Flags, Tag, Base, Size,
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PCIIOC_MMAP_IS_MEM);
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-
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- if ((fd = linuxOpenLegacy(Tag, "legacy_mem")) < 0)
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- return linuxMapPci(ScreenNum, Flags, Tag, Base, Size,
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+ else if ((fd = linuxOpenLegacy(Tag, "legacy_mem")) < 0)
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+ addr = linuxMapPci(ScreenNum, Flags, Tag, Base, Size,
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PCIIOC_MMAP_IS_MEM);
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+ else
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+ addr = mmap(NULL, Size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, Base);
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- addr = mmap(NULL, Size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, Base);
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- if (addr == MAP_FAILED) {
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- close (fd);
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+ if (fd >= 0)
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+ close(fd);
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+ if (addr == NULL || addr == MAP_FAILED) {
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perror("mmap failure");
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FatalError("xf86MapDomainMem(): mmap() failure\n");
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}
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- close(fd);
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return addr;
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}
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