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-rw-r--r--lib/util/idtree.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/util/idtree.c b/lib/util/idtree.c
index 6611992a25..3648761069 100644
--- a/lib/util/idtree.c
+++ b/lib/util/idtree.c
@@ -104,7 +104,7 @@ static int sub_alloc(struct idr_context *idp, void *ptr, int *starting_id)
{
int n, m, sh;
struct idr_layer *p, *pn;
- struct idr_layer *pa[MAX_LEVEL];
+ struct idr_layer *pa[MAX_LEVEL+1];
unsigned int l, id, oid;
uint32_t bm;