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@redhat.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Joe Lawrence <joe.lawrence@redhat.com>
Link: http://lkml.kernel.org/r/1538490554-8161-3-git-send-email-sansharm@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index 7b0ca7cbb7de852433a2dbd7494789096b555edd..8ad8e755127bd704e991254ee735e1f0d6ab9ed3 100644 (file)
--- 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;
                }