| From cd857dd6bc2ae9ecea14e75a34e8a8fdc158e307 Mon Sep 17 00:00:00 2001 |
| From: Liu Bo <bo.li.liu@oracle.com> |
| Date: Sun, 8 Jun 2014 19:04:13 +0800 |
| Subject: Btrfs: use right type to get real comparison |
| |
| From: Liu Bo <bo.li.liu@oracle.com> |
| |
| commit cd857dd6bc2ae9ecea14e75a34e8a8fdc158e307 upstream. |
| |
| 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> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| fs/btrfs/backref.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/fs/btrfs/backref.c |
| +++ b/fs/btrfs/backref.c |
| @@ -1033,7 +1033,7 @@ static int __get_extent_inline_ref(unsig |
| *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; |
| } |
| |
