linux-kernel - [PATCH 2/5] perf tools: cleanup trace-event-info 'tdata' leak

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Date:   Tue,  2 Oct 2018 10:29:11 -0400
From:   Sanskriti Sharma <sansharm@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Jiri Olsa <jolsa@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Joe Lawrence <joe.lawrence@...hat.com>
Subject: [PATCH 2/5] perf tools: cleanup trace-event-info 'tdata' leak

Free tracing_data structure in tracing_data_get() error paths.

Fixes the following coverity complaint:

  Error: RESOURCE_LEAK (CWE-772):
  leaked_storage: Variable "tdata" going out of scope leaks the storage

Signed-off-by: Sanskriti Sharma <sansharm@...hat.com>
---
 tools/perf/util/trace-event-info.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index 7b0ca7c..8ad8e75 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -531,12 +531,14 @@ struct tracing_data *tracing_data_get(struct list_head *pattrs,
 			 "/tmp/perf-XXXXXX");
 		if (!mkstemp(tdata->temp_file)) {
 			pr_debug("Can't make temp file");
+			free(tdata);
 			return NULL;
 		}
 
 		temp_fd = open(tdata->temp_file, O_RDWR);
 		if (temp_fd < 0) {
 			pr_debug("Can't read '%s'", tdata->temp_file);
+			free(tdata);
 			return NULL;
 		}
 
-- 
1.8.3.1