pkbktarr: ensure valid iter increment

1 files changed, 1 insertions, 1 deletions

diff --git a/pkbktarr.h b/pkbktarr.h
index e4e8daa..87e71ad 100644
--- a/pkbktarr.h
+++ b/pkbktarr.h
@@ -380,11 +380,11 @@ bool pk_bkt_arr_iter_increment(struct pk_bkt_arr *arr, struct pk_iter *it) {
 	if (it->id.bkt.b == arr->limits.b-1 && it->id.bkt.i == arr->limits.i-1) return false;
 	for (;;) {
 		handle = pk_bkt_arr_handle_increment(arr, handle);
+		if (handle.b >= arr->reserved_buckets) return false;
 		if ((arr->idx_unused[handle.b] & (1ull << handle.i)) == 0) break;
 	}
 	it->id.bkt.b = handle.b;
 	it->id.bkt.i = handle.i;
-	if (handle.b >= arr->reserved_buckets) return false;
 	if ((arr->idx_unused[it->id.bkt.b] & (1ull << it->id.bkt.i)) != 0) return false;
 	it->data = (char*)(arr->bucketed_data[it->id.bkt.b]) + (arr->stride * it->id.bkt.i);
 	return true;