diff --git a/lib/idr.c b/lib/idr.c
index ffd6194..d0f1acd 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -405,7 +405,7 @@
  */
 void idr_remove_all(struct idr *idp)
 {
-	int n, id, max, error = 0;
+	int n, id, max;
 	struct idr_layer *p;
 	struct idr_layer *pa[MAX_LEVEL];
 	struct idr_layer **paa = &pa[0];
@@ -415,7 +415,7 @@
 	max = 1 << n;
 
 	id = 0;
-	while (id < max && !error) {
+	while (id < max) {
 		while (n > IDR_BITS && p) {
 			n -= IDR_BITS;
 			*paa++ = p;