Return early from NVS command submission if no response is required

diff --git a/sys/dev/pv/if_hvn.c b/sys/dev/pv/if_hvn.c
index 377bc67..9613bdf 100644 (file)
--- a/sys/dev/pv/if_hvn.c
+++ b/sys/dev/pv/if_hvn.c
@@ -1045,6 +1045,9 @@ hvn_nvs_cmd(struct hvn_softc *sc, void *cmd, size_t cmdsize, uint64_t tid,
                return (rv);
        }
 
+       if (timo == 0)
+               return (0);
+
        do {
                if (cold)
                        delay(1000);