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-rw-r--r--kernel/locking/lockdep.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index e85b5ad3e206..151bd3de5936 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3497,7 +3497,8 @@ static int alloc_chain_hlocks(int req)
size = chain_block_size(curr);
if (likely(size >= req)) {
del_chain_block(0, size, chain_block_next(curr));
- add_chain_block(curr + req, size - req);
+ if (size > req)
+ add_chain_block(curr + req, size - req);
return curr;
}
}