Commit cd857dd6 authored by Liu Bo's avatar Liu Bo Committed by Chris Mason
Browse files

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: default avatarLiu Bo <bo.li.liu@oracle.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent 8a56457f

fs/btrfs/backref.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

	}