[patch] ocfs2: fix an off-by-one BUG_ON() statement

Dan Carpenter
2014-10-22T08:13:07Z

The ->si_slots[] array is allocated in ocfs2_init_slot_info() it has
"->max_slots" number of elements so this test should be >= instead of >.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
Static checker work. Compile tested only.

diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index a88b2a4..d5493e3 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -306,7 +306,7 @@ int ocfs2_slot_to_node_num_locked(struct ocfs2_super *osb, int slot_num,
assert_spin_locked(&osb->osb_lock);

BUG_ON(slot_num < 0);
- BUG_ON(slot_num > osb->max_slots);
+ BUG_ON(slot_num >= osb->max_slots);

if (!si->si_slots[slot_num].sl_valid)
return -ENOENT;