diff --git a/qemu/qapi/string-input-visitor.c b/qemu/qapi/string-input-visitor.c
index 4c94f550..5271414c 100644
--- a/qemu/qapi/string-input-visitor.c
+++ b/qemu/qapi/string-input-visitor.c
@@ -19,6 +19,7 @@
 #include "qapi/qmp/qnull.h"
 #include "qemu/queue.h"
 #include "qemu/range.h"
+#include "qemu/cutils.h"
 #include <stdlib.h>	// strtoll
 
 
@@ -297,12 +298,9 @@ static void parse_type_number(Visitor *v,  const char *name, double *obj,
                               Error **errp)
 {
     StringInputVisitor *siv = to_siv(v);
-    char *endp = (char *) siv->string;
     double val;
 
-    errno = 0;
-    val = strtod(siv->string, &endp);
-    if (errno || endp == siv->string || *endp) {
+    if (qemu_strtod_finite(siv->string, NULL, &val)) {
         error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                    "number");
         return;