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-rw-r--r--regress/sys/kern/flock/flock.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/regress/sys/kern/flock/flock.c b/regress/sys/kern/flock/flock.c
index 154b85315bb..f4fa317600e 100644
--- a/regress/sys/kern/flock/flock.c
+++ b/regress/sys/kern/flock/flock.c
@@ -1288,6 +1288,7 @@ test15(int fd)
err(1, "reading from pipe (child)");
fd2 = dup(fd);
+ FAIL(fd2 == -1);
if (flock(fd, LOCK_SH) < 0)
err(1, "flock shared");