diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/idr.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/idr.c b/lib/idr.c index 3df44d528b68..b47055efceb0 100644 --- a/lib/idr.c +++ b/lib/idr.c @@ -159,7 +159,11 @@ int idr_for_each(const struct idr *idr, void __rcu **slot; radix_tree_for_each_slot(slot, &idr->idr_rt, &iter, 0) { - int ret = fn(iter.index, rcu_dereference_raw(*slot), data); + int ret; + + if (WARN_ON_ONCE(iter.index > INT_MAX)) + break; + ret = fn(iter.index, rcu_dereference_raw(*slot), data); if (ret) return ret; } @@ -187,6 +191,9 @@ void *idr_get_next(struct idr *idr, int *nextid) if (!slot) return NULL; + if (WARN_ON_ONCE(iter.index > INT_MAX)) + return NULL; + *nextid = iter.index; return rcu_dereference_raw(*slot); } |