sd-netlink: make netlink_get_reply_callback_count() accept NULL

diff --git a/src/libsystemd/sd-netlink/sd-netlink.c b/src/libsystemd/sd-netlink/sd-netlink.c
index 57e5a652149d9c45ff019541f90fdc0b57a67d8c..fe0c1a0080af0401948b743192840a582703810e 100644 (file)
--- a/src/libsystemd/sd-netlink/sd-netlink.c
+++ b/src/libsystemd/sd-netlink/sd-netlink.c
@@ -466,7 +466,8 @@ static int timeout_compare(const void *a, const void *b) {
 }
 
 size_t netlink_get_reply_callback_count(sd_netlink *nl) {
-        assert(nl);
+        if (!nl)
+                return 0;
 
         return hashmap_size(nl->reply_callbacks);
 }