1 files changed, 6 insertions, 1 deletions
diff --git a/sim/common/sim-utils.c b/sim/common/sim-utils.c
index b76064ec21..1dbc4fbdd5 100644
--- a/sim/common/sim-utils.c
+++ b/sim/common/sim-utils.c
@@ -336,7 +336,12 @@ sim_do_commandf (SIM_DESC sd,
   va_list ap;
   char *buf;
   va_start (ap, fmt);
-  vasprintf (&buf, fmt, ap);
+  if (vasprintf (&buf, fmt, ap) < 0)
+    {
+      sim_io_eprintf (sd, "%s: asprintf failed for `%s'\n",
+		      STATE_MY_NAME (sd), fmt);
+      return;
+    }
   sim_do_command (sd, buf);
   va_end (ap);
   free (buf);