[PATCH 5.10 438/452] kseltest/cgroup: Make test_stress.sh work if run interactively

[Greg Kroah-Hartman]

From: Waiman Long <longman@xxxxxxxxxx>

commit 213adc63dfbcdff9a0c19ec1f2681fda9c05cf6d upstream.

Commit 54de76c01239 ("kselftest/cgroup: fix test_stress.sh to use OUTPUT
dir") changes the test_core command path from . to $OUTPUT. However,
variable OUTPUT may not be defined if the command is run interactively.
Fix that by using ${OUTPUT:-.} to cover both cases.

Signed-off-by: Waiman Long <longman@xxxxxxxxxx>
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 tools/testing/selftests/cgroup/test_stress.sh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/selftests/cgroup/test_stress.sh
+++ b/tools/testing/selftests/cgroup/test_stress.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
-./with_stress.sh -s subsys -s fork ${OUTPUT}/test_core
+./with_stress.sh -s subsys -s fork ${OUTPUT:-.}/test_core