diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2015-01-09 01:38:12 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-01-16 21:49:28 +0100 |
| commit | 260d819e3abdbdaa2b88fb983d1314f1b263f9e2 (patch) | |
| tree | 65e29f22733136264e30896fc28ee2874834d1db | |
| parent | perf tools: Fix building error in x86_64 when dwarf unwind is on (diff) | |
| download | linux-260d819e3abdbdaa2b88fb983d1314f1b263f9e2.tar.xz linux-260d819e3abdbdaa2b88fb983d1314f1b263f9e2.zip | |
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>
| -rw-r--r-- | tools/perf/util/machine.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 94de3e48b490..1bca3a9f2b16 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; |