[PATCH 1/2] kselftest/arm64/gcs: Correctly check return value when disabling GCS

[Thomas Weißschuh]

The return value was not assigned to 'ret', so the check afterwards
does not do anything.

Fixes: 3d37d4307e0f ("kselftest/arm64: Add very basic GCS test program")
Signed-off-by: Thomas Weißschuh <li...@weissschuh.net>
---
 tools/testing/selftests/arm64/gcs/basic-gcs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/arm64/gcs/basic-gcs.c 
b/tools/testing/selftests/arm64/gcs/basic-gcs.c
index 
54f9c888249d74451e1432280a395156ce72e56c..100d2a983155f7347a19b2b8b88f9494dc6a51d5
 100644
--- a/tools/testing/selftests/arm64/gcs/basic-gcs.c
+++ b/tools/testing/selftests/arm64/gcs/basic-gcs.c
@@ -410,7 +410,7 @@ int main(void)
        }
 
        /* One last test: disable GCS, we can do this one time */
-       my_syscall5(__NR_prctl, PR_SET_SHADOW_STACK_STATUS, 0, 0, 0, 0);
+       ret = my_syscall5(__NR_prctl, PR_SET_SHADOW_STACK_STATUS, 0, 0, 0, 0);
        if (ret != 0)
                ksft_print_msg("Failed to disable GCS: %d\n", ret);
 

-- 
2.50.1