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authorNamhyung Kim <namhyung@kernel.org>2015-01-09 09:38:12 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-01-16 17:49:28 -0300
commit260d819e3abdbdaa2b88fb983d1314f1b263f9e2 (patch)
tree65e29f22733136264e30896fc28ee2874834d1db /tools
parentc6e5e9fbc3ea1c1a5648a3498d085fc3978df2d4 (diff)
downloadop-kernel-dev-260d819e3abdbdaa2b88fb983d1314f1b263f9e2.zip
op-kernel-dev-260d819e3abdbdaa2b88fb983d1314f1b263f9e2.tar.gz
perf machine: Fix __machine__findnew_thread() error path
When thread__init_map_groups() fails, a new thread should be removed from the rbtree since it's gonna be freed. Also update last match cache only if the function succeeded. Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1420763892-15535-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/machine.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 94de3e4..1bca3a9 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -389,7 +389,6 @@ static struct thread *__machine__findnew_thread(struct machine *machine,
if (th != NULL) {
rb_link_node(&th->rb_node, parent, p);
rb_insert_color(&th->rb_node, &machine->threads);
- machine->last_match = th;
/*
* We have to initialize map_groups separately
@@ -400,9 +399,12 @@ static struct thread *__machine__findnew_thread(struct machine *machine,
* leader and that would screwed the rb tree.
*/
if (thread__init_map_groups(th, machine)) {
+ rb_erase(&th->rb_node, &machine->threads);
thread__delete(th);
return NULL;
}
+
+ machine->last_match = th;
}
return th;
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