[RESEND PATCH] kvm/selftests: Close opened file descriptor in stable_tsc_check_supported()

From: Hao Ge
Date: Wed Apr 05 2023 - 06:14:34 EST


Close the "current_clocksource" file descriptor before
returning or exiting from stable_tsc_check_supported()
in vmx_nested_tsc_scaling_test

Signed-off-by: Hao Ge <gehao@xxxxxxxxxx>
---
.../selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c b/tools/testing/selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c
index d427eb146bc5..fa03c8d1ce4e 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c
@@ -126,12 +126,16 @@ static void stable_tsc_check_supported(void)
goto skip_test;

if (fgets(buf, sizeof(buf), fp) == NULL)
- goto skip_test;
+ goto close_fp;

if (strncmp(buf, "tsc", sizeof(buf)))
- goto skip_test;
+ goto close_fp;

+ fclose(fp);
return;
+
+close_fp:
+ fclose(fp);
skip_test:
print_skip("Kernel does not use TSC clocksource - assuming that host TSC is not stable");
exit(KSFT_SKIP);
--
2.25.1


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