File autofs-5.0.5-fix-null-cache-deadlock.patch of Package autofs.import5769

This might be all we need since once the master map is read the null
cache is set up and and can't change while we hold the read lock ....

autofs-5.0.5 - fix null cache deadlock

From: Ian Kent <ikent@redhat.com>

---

 daemon/state.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/daemon/state.c b/daemon/state.c
index 3645440..51809a1 100644
--- a/daemon/state.c
+++ b/daemon/state.c
@@ -473,11 +473,11 @@ static void *do_readmap(void *arg)
 
 		mnts = tree_make_mnt_tree(_PROC_MOUNTS, "/");
 		pthread_cleanup_push(tree_mnts_cleanup, mnts);
-		pthread_cleanup_push(master_source_lock_cleanup, ap->entry);
-		master_source_readlock(ap->entry);
 		nc = ap->entry->master->nc;
 		cache_readlock(nc);
 		pthread_cleanup_push(cache_lock_cleanup, nc);
+		master_source_readlock(ap->entry);
+		pthread_cleanup_push(master_source_lock_cleanup, ap->entry);
 		map = ap->entry->maps;
 		while (map) {
 			/* Is map source up to date or no longer valid */