No need for a new kind of notification, we can provide a smoother upgrade path

1 files changed, 3 insertions, 1 deletions

diff --git a/ipc/ipc_port.c b/ipc/ipc_port.c
index 86a4ee2..a608e6e 100644
--- a/ipc/ipc_port.c
+++ b/ipc/ipc_port.c
@@ -310,6 +310,7 @@ ipc_port_nsrequest(
 {
 	ipc_port_t previous;
 	mach_port_mscount_t mscount;
+	mach_port_mscount_t mscount_max = (mach_port_mscount_t) ~0;
 
 	assert(ip_active(port));
 
@@ -317,7 +318,8 @@ ipc_port_nsrequest(
 	mscount = port->ip_mscount;
 
 	if ((port->ip_srights == 0) &&
-	    (sync <= mscount) &&
+	    (sync <= mscount
+	     || (sync == mscount_max && mscount < mscount_max)) &&
 	    (notify != IP_NULL)) {
 		port->ip_nsrequest = IP_NULL;
 		ip_unlock(port);