perf machine: Fix leak of 'struct thread' on error path

__machine__findnew_thread() creates a 'struct thread' but does not free
it on the error path. Fix it.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1405495184-20441-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 5484fa4385fc..93c8b6fbc799 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -370,8 +370,10 @@ static struct thread *__machine__findnew_thread(struct machine *machine,
                  * within thread__init_map_groups to find the thread
                  * leader and that would screwed the rb tree.
                  */
-                if (thread__init_map_groups(th, machine))
+                if (thread__init_map_groups(th, machine)) {
+                        thread__delete(th);
                         return NULL;
+                }
         }
 
         return th;