pclose(NULL) is undefined behavior and crashes.

Signed-off-by: Thomas Jarosch <thomas.jaro...@intra2net.com>
---
 tools/perf/util/sort.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index a83ded2..8333661 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -279,10 +279,12 @@ static int hist_entry__srcline_snprintf(struct hist_entry 
*self, char *bf,
                *nl = '\0';
        path = self->srcline;
 out_path:
-       pclose(fp);
+       if (fp)
+               pclose(fp);
        return repsep_snprintf(bf, size, "%s", path);
 out_ip:
-       pclose(fp);
+       if (fp)
+               pclose(fp);
        return repsep_snprintf(bf, size, "%-#*llx", BITS_PER_LONG / 4, 
self->ip);
 }
 
-- 
1.7.11.7

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