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-rw-r--r--libports/reallocate-port.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libports/reallocate-port.c b/libports/reallocate-port.c
index 42ac60bf..35dd4883 100644
--- a/libports/reallocate-port.c
+++ b/libports/reallocate-port.c
@@ -31,6 +31,8 @@ ports_reallocate_port (void *portstruct)
int dropref = 0;
mutex_lock (&_ports_lock);
+ assert (pi->port_right);
+
err = mach_port_mod_refs (mach_task_self (), pi->port_right,
MACH_PORT_RIGHT_RECEIVE, -1);
assert_perror (err);