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Message-Id: <20211115165321.889745278@linuxfoundation.org>
Date:   Mon, 15 Nov 2021 18:02:56 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Andrea Righi <andrea.righi@...onical.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Martin KaFai Lau <kafai@...com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 252/355] selftests/bpf: Fix fclose/pclose mismatch in test_progs

From: Andrea Righi <andrea.righi@...onical.com>

[ Upstream commit f48ad69097fe79d1de13c4d8fef556d4c11c5e68 ]

Make sure to use pclose() to properly close the pipe opened by popen().

Fixes: 81f77fd0deeb ("bpf: add selftest for stackmap with BPF_F_STACK_BUILD_ID")
Signed-off-by: Andrea Righi <andrea.righi@...onical.com>
Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
Reviewed-by: Shuah Khan <skhan@...uxfoundation.org>
Acked-by: Martin KaFai Lau <kafai@...com>
Link: https://lore.kernel.org/bpf/20211026143409.42666-1-andrea.righi@canonical.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/bpf/test_progs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index 48bbe8e0ce48d..4369bc46bf9c2 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -289,7 +289,7 @@ int extract_build_id(char *build_id, size_t size)
 
 	if (getline(&line, &len, fp) == -1)
 		goto err;
-	fclose(fp);
+	pclose(fp);
 
 	if (len > size)
 		len = size;
@@ -298,7 +298,7 @@ int extract_build_id(char *build_id, size_t size)
 	free(line);
 	return 0;
 err:
-	fclose(fp);
+	pclose(fp);
 	return -1;
 }
 
-- 
2.33.0



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