kqueue: fix a potential deadlock

In case an object is already monitored, we lock then return without
unlocking it which can then result in a self deadlock. So properly
unlock before returning.

https://bugzilla.gnome.org/show_bug.cgi?id=721074

diff --git a/gio/kqueue/kqueue-missing.c b/gio/kqueue/kqueue-missing.c
index 9ea3c3efdb45ae478f57d71f914e755d73d2b8b0..9decdc937d9ab6d9221eb19bb6f7a946b1b75d25 100644 (file)
--- a/gio/kqueue/kqueue-missing.c
+++ b/gio/kqueue/kqueue-missing.c
@@ -68,6 +68,7 @@ _km_add_missing (kqueue_sub *sub)
   if (g_slist_find (missing_subs_list, sub))
     {
       KM_W ("asked to add %s to missing list but it's already on the list!\n", sub->filename);
+      G_UNLOCK (missing_lock);
       return;
     }