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drm: fixup drm bufs being just under the EOM
If the mapping was just under the end of memory it would fail. Lets DRM start on my PCI card. Signed-off-by: Dave Airlie <airlied@linux.ie>
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1 changed files with 1 additions and 1 deletions
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@ -154,7 +154,7 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
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case _DRM_REGISTERS:
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case _DRM_REGISTERS:
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case _DRM_FRAME_BUFFER:
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case _DRM_FRAME_BUFFER:
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#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__)
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#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__)
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if (map->offset + map->size < map->offset ||
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if (map->offset + (map->size-1) < map->offset ||
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map->offset < virt_to_phys(high_memory)) {
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map->offset < virt_to_phys(high_memory)) {
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drm_free(map, sizeof(*map), DRM_MEM_MAPS);
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drm_free(map, sizeof(*map), DRM_MEM_MAPS);
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return -EINVAL;
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return -EINVAL;
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