Index: sys/dev/bhnd/bcma/bcma_subr.c
===================================================================
--- sys/dev/bhnd/bcma/bcma_subr.c
+++ sys/dev/bhnd/bcma/bcma_subr.c
@@ -137,6 +137,7 @@
 	default:
 		return (NULL);
 	}
+	return (NULL);
 }
 
 /**
Index: sys/dev/bhnd/bhnd.c
===================================================================
--- sys/dev/bhnd/bhnd.c
+++ sys/dev/bhnd/bhnd.c
@@ -354,6 +354,8 @@
 	default:
 		return (BHND_PROBE_DEFAULT);
 	}
+
+	return (-1);
 }
 
 /**
Index: sys/dev/bhnd/siba/siba_subr.c
===================================================================
--- sys/dev/bhnd/siba/siba_subr.c
+++ sys/dev/bhnd/siba/siba_subr.c
@@ -193,6 +193,8 @@
 		    port_type);
 		return (NULL);
 	}
+
+	return (NULL);
 }