sd-ipv4acd: do not call callback in sd_ipv4acd_stop() when it is already stopped

diff --git a/src/libsystemd-network/sd-ipv4acd.c b/src/libsystemd-network/sd-ipv4acd.c
index d957202a689db62372258587b224454df994fa7c..0371641cdbf3fa3fcd32d1e2da73372956580c8a 100644 (file)
--- a/src/libsystemd-network/sd-ipv4acd.c
+++ b/src/libsystemd-network/sd-ipv4acd.c
@@ -142,10 +142,17 @@ static void ipv4acd_client_notify(sd_ipv4acd *acd, int event) {
 }
 
 int sd_ipv4acd_stop(sd_ipv4acd *acd) {
+        IPv4ACDState old_state;
+
         assert_return(acd, -EINVAL);
 
+        old_state = acd->state;
+
         ipv4acd_reset(acd);
 
+        if (old_state == IPV4ACD_STATE_INIT)
+                return 0;
+
         log_ipv4acd(acd, "STOPPED");
 
         ipv4acd_client_notify(acd, SD_IPV4ACD_EVENT_STOP);