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-rw-r--r--util/id.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/util/id.c b/util/id.c
index bcc64d836f..7883fbec79 100644
--- a/util/id.c
+++ b/util/id.c
@@ -29,7 +29,7 @@ bool id_wellformed(const char *id)
 
 #define ID_SPECIAL_CHAR '#'
 
-static const char *const id_subsys_str[] = {
+static const char *const id_subsys_str[ID_MAX] = {
     [ID_QDEV]  = "qdev",
     [ID_BLOCK] = "block",
 };
@@ -53,7 +53,7 @@ char *id_generate(IdSubSystems id)
     static uint64_t id_counters[ID_MAX];
     uint32_t rnd;
 
-    assert(id < ID_MAX);
+    assert(id < ARRAY_SIZE(id_subsys_str));
     assert(id_subsys_str[id]);
 
     rnd = g_random_int_range(0, 100);