1 files changed, 6 insertions, 9 deletions

diff --git a/src/dbusbind.c b/src/dbusbind.c
index 227d4e647e9..52e08d8ee2a 100644
--- a/src/dbusbind.c
+++ b/src/dbusbind.c
@@ -2071,13 +2071,7 @@ usage: (dbus-register-signal BUS SERVICE PATH INTERFACE SIGNAL HANDLER &rest ARG
       && (SBYTES (service) > 0)
       && (strcmp (SSDATA (service), DBUS_SERVICE_DBUS) != 0)
       && (strncmp (SSDATA (service), ":", 1) != 0))
-    {
-      uname = call2 (intern ("dbus-get-name-owner"), bus, service);
-      /* When there is no unique name, we mark it with an empty
-         string.  */
-      if (NILP (uname))
-        uname = empty_unibyte_string;
-    }
+    uname = call2 (intern ("dbus-get-name-owner"), bus, service);
   else
     uname = service;
 
@@ -2145,7 +2139,7 @@ usage: (dbus-register-signal BUS SERVICE PATH INTERFACE SIGNAL HANDLER &rest ARG
 
   /* Create a hash table entry.  */
   key = list3 (bus, interface, signal);
-  key1 = list4 (uname, service, path, handler);
+  key1 = list5 (uname, service, path, handler, build_string (rule));
   value = Fgethash (key, Vdbus_registered_objects_table, Qnil);
 
   if (NILP (Fmember (key1, value)))
@@ -2177,7 +2171,7 @@ When DONT-REGISTER-SERVICE is non-nil, the known name SERVICE is not
 registered.  This means that other D-Bus clients have no way of
 noticing the newly registered method.  When interfaces are constructed
 incrementally by adding single methods or properties at a time,
-DONT-REGISTER-SERVICE can be use to prevent other clients from
+DONT-REGISTER-SERVICE can be used to prevent other clients from
 discovering the still incomplete interface.*/)
   (Lisp_Object bus, Lisp_Object service, Lisp_Object path,
    Lisp_Object interface, Lisp_Object method, Lisp_Object handler,
@@ -2319,6 +2313,9 @@ be called when a D-Bus message, which matches the key criteria,
 arrives (methods and signals), or a cons cell containing the value of
 the property.
 
+For signals, there is also a fifth element RULE, which keeps the match
+string the signal is registered with.
+
 In the second case, the key in the hash table is the list (BUS
 SERIAL).  BUS is either a Lisp symbol, `:system' or `:session', or a
 string denoting the bus address.  SERIAL is the serial number of the