linux-kernel - [PATCH] tools/power x86_energy_perf

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Message-Id: <20220430135925.1657374-1-trix@redhat.com>
Date:   Sat, 30 Apr 2022 09:59:25 -0400
From:   Tom Rix <trix@...hat.com>
To:     len.brown@...el.com
Cc:     linux-kernel@...r.kernel.org, Tom Rix <trix@...hat.com>
Subject: [PATCH] tools/power x86_energy_perf_policy: close opened file

The cppcheck reports this issue
x86_energy_perf_policy.c:1244]: (error) Resource leak: fp

When a file is opened with fopen it should be closed with fclose.
So close it.

Fixes: 4beec1d75196 ("tools/power x86_energy_perf_policy: support HWP.EPP")
Signed-off-by: Tom Rix <trix@...hat.com>
---
 tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c b/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c
index 5fd9e594079c..0ed9ae66236d 100644
--- a/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c
+++ b/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c
@@ -1239,6 +1239,7 @@ unsigned int get_pkg_num(int cpu)
 
 	fp = fopen_or_die(pathname, "r");
 	retval = fscanf(fp, "%d\n", &pkg);
+	fclose(fp);
 	if (retval != 1)
 		errx(1, "%s: failed to parse", pathname);
 	return pkg;
-- 
2.27.0