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| author | Liu Bo <bo.li.liu@oracle.com> | 2014-06-08 19:04:13 +0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-06-09 17:21:15 -0700 |
| commit | cd857dd6bc2ae9ecea14e75a34e8a8fdc158e307 (patch) | |
| tree | f8d58a7edb5dc111c5377592ed3fd843e48f8930 | |
| parent | 8a56457f5f8fa7c2698ffae8545214c5b96a2cb5 (diff) | |
| download | linux-cd857dd6bc2ae9ecea14e75a34e8a8fdc158e307.tar.bz2 | |
Btrfs: use right type to get real comparison
We want to make sure the point is still within the extent item, not to verify
the memory it's pointing to.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
| -rw-r--r-- | fs/btrfs/backref.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 84d0912eecb2..00f9d9f911ca 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1428,7 +1428,7 @@ static int __get_extent_inline_ref(unsigned long *ptr, struct extent_buffer *eb, *out_eiref = (struct btrfs_extent_inline_ref *)(ei + 1); } *ptr = (unsigned long)*out_eiref; - if ((void *)*ptr >= (void *)ei + item_size) + if ((unsigned long)(*ptr) >= (unsigned long)ei + item_size) return -ENOENT; } |