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Date: Tue, 30 Jun 2015 16:57:49 -0300 From: Arnaldo Carvalho de Melo <acme@...nel.org> To: Taeung Song <treeze.taeung@...il.com> Cc: linux-kernel@...r.kernel.org, jolsa@...hat.com, namhyung@...nel.org, Ingo Molnar <mingo@...hat.com> Subject: Re: [PATCH v2 4/5] perf mem: Fill in the missing freeing a session after an error occur Em Wed, Jul 01, 2015 at 12:18:45AM +0900, Taeung Song escreveu: > When an error occur a error value is just returned > without freeing the session. So allocating and freeing > session have to be matched as a pair even if an error occur. > > Signed-off-by: Taeung Song <treeze.taeung@...il.com> > --- > tools/perf/builtin-mem.c | 18 ++++++++---------- > 1 file changed, 8 insertions(+), 10 deletions(-) > > diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c > index da2ec06..a914ef7 100644 > --- a/tools/perf/builtin-mem.c > +++ b/tools/perf/builtin-mem.c > @@ -124,7 +124,6 @@ static int report_raw_events(struct perf_mem *mem) > .mode = PERF_DATA_MODE_READ, > .force = mem->force, > }; > - int err = -EINVAL; > int ret; > struct perf_session *session = perf_session__new(&file, false, > &mem->tool); > @@ -135,24 +134,23 @@ static int report_raw_events(struct perf_mem *mem) > if (mem->cpu_list) { > ret = perf_session__cpu_bitmap(session, mem->cpu_list, > mem->cpu_bitmap); > - if (ret) > + if (ret) { > + ret = -EINVAL; Why not propagate perf_session__cpu_bitmap() return, this function wasn't being consistent in returning errors, neither was you, as, see below... > goto out_delete; > + } > } > > - if (symbol__init(&session->header.env) < 0) > - return -1; > + ret = symbol__init(&session->header.env); > + if (ret < 0) > + goto out_delete; Here you decided to propagate symbol__init() error return. :-) I applied all the others, including the 3/5 v2 one. Thanks, - Arnaldo > > printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n"); > > - err = perf_session__process_events(session); > - if (err) > - return err; > - > - return 0; > + ret = perf_session__process_events(session); > > out_delete: > perf_session__delete(session); > - return err; > + return ret; > } > > static int report_events(int argc, const char **argv, struct perf_mem *mem) > -- > 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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