1 files changed, 3 insertions, 2 deletions
diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c
index 911a0ee300..aac2e09e1f 100644
--- a/qapi/opts-visitor.c
+++ b/qapi/opts-visitor.c
@@ -482,14 +482,15 @@ opts_type_size(Visitor *v, const char *name, uint64_t *obj, Error **errp)
     OptsVisitor *ov = to_ov(v);
     const QemuOpt *opt;
     int64_t val;
+    int err;
 
     opt = lookup_scalar(ov, name, errp);
     if (!opt) {
         return;
     }
 
-    val = qemu_strtosz(opt->str ? opt->str : "", NULL);
-    if (val < 0) {
+    err = qemu_strtosz(opt->str ? opt->str : "", NULL, &val);
+    if (err < 0) {
         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, opt->name,
                    "a size value representible as a non-negative int64");
         return;