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| author | Jeff Garzik <jgarzik@pobox.com> | 2006-01-03 10:49:18 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-01-03 10:49:18 -0500 |
| commit | ac67c6247361b3b8644b34e5301a46d5069c1373 (patch) | |
| tree | dd83147e304181e889eefa39e5056451031f4b5d /drivers/video/sbuslib.c | |
| parent | c4c48d83e9ffb1c25cccd59d5ea9dda6ded01faf (diff) | |
| parent | 88026842b0a760145aa71d69e74fbc9ec118ca44 (diff) | |
Merge branch 'master'
Diffstat (limited to 'drivers/video/sbuslib.c')
| -rw-r--r-- | drivers/video/sbuslib.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/sbuslib.c b/drivers/video/sbuslib.c index 646c43f921c..3a74a63dd4f 100644 --- a/drivers/video/sbuslib.c +++ b/drivers/video/sbuslib.c @@ -46,6 +46,9 @@ int sbusfb_mmap_helper(struct sbus_mmap_map *map, unsigned long off; int i; + if (!(vma->vm_flags & (VM_SHARED | VM_MAYSHARE))) + return -EINVAL; + size = vma->vm_end - vma->vm_start; if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) return -EINVAL; |