diff --git a/sys/dev/mly/mly.c b/sys/dev/mly/mly.c
index 9e3b332..8582601 100644
--- a/sys/dev/mly/mly.c
+++ b/sys/dev/mly/mly.c
@@ -2950,7 +2950,7 @@ mly_user_command(struct mly_softc *sc, struct mly_user_command *uc)
     error = 0;
 
  out:
-    if (mc->mc_data != NULL)
+    if (mc != NULL && mc->mc_data != NULL)
 	free(mc->mc_data, M_DEVBUF);
     if (mc != NULL) {
 	MLY_LOCK(sc);