linux-kernel - [PATCH 5.2 096/124] tools/power turbostat: fix leak of file descriptor on error return path

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Date:   Fri, 20 Sep 2019 00:03:04 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Colin Ian King <colin.king@...onical.com>,
        Len Brown <len.brown@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.2 096/124] tools/power turbostat: fix leak of file descriptor on error return path

From: Colin Ian King <colin.king@...onical.com>

[ Upstream commit 15423b958f33132152e209e98df0dedc7a78f22c ]

Currently the error return path does not close the file fp and leaks
a file descriptor. Fix this by closing the file.

Fixes: 5ea7647b333f ("tools/power turbostat: Warn on bad ACPI LPIT data")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
Signed-off-by: Len Brown <len.brown@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/power/x86/turbostat/turbostat.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 1cd28ebf8443b..efc8d07364c61 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2938,6 +2938,7 @@ int snapshot_sys_lpi_us(void)
 	if (retval != 1) {
 		fprintf(stderr, "Disabling Low Power Idle System output\n");
 		BIC_NOT_PRESENT(BIC_SYS_LPI);
+		fclose(fp);
 		return -1;
 	}
 	fclose(fp);
-- 
2.20.1