Removing the risk of using a non-allocated file resource

Signed-off-by: Rickard Strandqvist <rickard_strandqv...@spectrumdigital.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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