linux-kernel - [PATCH] tools: power: cpupower: bench: parse.c: Cleaning up use of a non-allocated file resource

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Date:	Sat, 31 May 2014 02:25:53 +0200
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Dominik Brodowski <linux@...inikbrodowski.net>,
	Thomas Renninger <trenn@...e.de>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] tools: power: cpupower: bench: parse.c:  Cleaning up use of a non-allocated file resource

Removing the risk of using a non-allocated file resource

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 tools/power/cpupower/bench/parse.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c
index 543bba1..abc026a 100644
--- a/tools/power/cpupower/bench/parse.c
+++ b/tools/power/cpupower/bench/parse.c
@@ -103,13 +103,16 @@ FILE *prepare_output(const char *dirname)
 	output = fopen(filename, "w+");
 	if (output == NULL) {
 		perror("fopen");
-		fprintf(stderr, "error: unable to open logfile\n");
+		fprintf(stderr, "error: unable to open logfile: %s\n",
+				filename);
+		goto out;
 	}
 
 	fprintf(stdout, "Logfile: %s\n", filename);
 
-	free(filename);
 	fprintf(output, "#round load sleep performance powersave percentage\n");
+out:
+	free(filename);
 	return output;
 }
 
-- 
1.7.10.4

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