1 files changed, 3 insertions, 3 deletions
diff --git a/vl.c b/vl.c
index 36ff3f4345..ea8ef5fd38 100644
--- a/vl.c
+++ b/vl.c
@@ -3933,9 +3933,9 @@ int main(int argc, char **argv, char **envp)
                 configure_rtc(opts);
                 break;
             case QEMU_OPTION_tb_size:
-                tcg_tb_size = strtol(optarg, NULL, 0);
-                if (tcg_tb_size < 0) {
-                    tcg_tb_size = 0;
+                if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
+                    error_report("Invalid argument to -tb-size");
+                    exit(1);
                 }
                 break;
             case QEMU_OPTION_icount: