Take responsibility for the state we create, and in particular remember
to kill our child process (the hang detector) before exiting.

Reported-by: Daniel Vetter <daniel.vet...@ffwll.ch>
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
---
 tests/i915/gem_exec_reuse.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tests/i915/gem_exec_reuse.c b/tests/i915/gem_exec_reuse.c
index df220be7b..44946528f 100644
--- a/tests/i915/gem_exec_reuse.c
+++ b/tests/i915/gem_exec_reuse.c
@@ -116,7 +116,7 @@ static unsigned int max_nfd(void)
 
 igt_main
 {
-       struct noop no;
+       struct noop no = { .fd = -1 };
        unsigned engines[16];
        unsigned nengine;
        unsigned n;
@@ -213,4 +213,7 @@ igt_main
                for (n = 0; n < ncontexts; n++)
                        gem_context_destroy(no.fd, contexts[n]);
        }
+
+       igt_fixture
+               igt_stop_hang_detector(no.fd);
 }
-- 
2.20.1

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