perf tools: Tag thread comm as overriden

The problem is that when a thread overrides its default ":%pid" comm, we
forget to tag the thread comm as overriden. Hence, this overriden comm
is not inherited on future forks. Fix it.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131116010207.GA18855@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 5 insertions, 6 deletions

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index cd8e2f592719..49eaf1d7d89d 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -70,14 +70,13 @@ int thread__set_comm(struct thread *thread, const char *str, u64 timestamp)
         /* Override latest entry if it had no specific time coverage */
         if (!curr->start) {
                 comm__override(curr, str, timestamp);
-                return 0;
+        } else {
+                new = comm__new(str, timestamp);
+                if (!new)
+                        return -ENOMEM;
+                list_add(&new->list, &thread->comm_list);
         }
 
-        new = comm__new(str, timestamp);
-        if (!new)
-                return -ENOMEM;
-
-        list_add(&new->list, &thread->comm_list);
         thread->comm_set = true;
 
         return 0;