linux-kernel - [RESEND PATCH] kvm/selftests: Close opened file descriptor in stable_tsc_check

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Date:   Wed,  5 Apr 2023 18:13:50 +0800
From:   Hao Ge <gehao@...inos.cn>
To:     pbonzini@...hat.com, shuah@...nel.org, seanjc@...gle.com,
        dmatlack@...gle.com, coltonlewis@...gle.com, vipinsh@...gle.com
Cc:     gehao@...inos.cn, kvm@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        gehao618@....com
Subject: [RESEND PATCH] kvm/selftests: Close opened file descriptor in stable_tsc_check_supported()

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@...inos.cn>
---
 .../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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