From: Arnaldo Carvalho de Melo Date: Sat, 20 Oct 2018 12:18:50 +0000 (-0300) Subject: perf trace: Drop addr_location refcounts X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4291bf5cb93918232f88a3a70d8f70a72fbb6ab0;p=openwrt%2Fstaging%2Fblogic.git perf trace: Drop addr_location refcounts When we use machine__resolve() we grab a reference to addr_location.thread (and in the future to other elements there) via machine__findnew_thread(), so we must pair that with addr_location__put(), else we'll never drop that thread when it exits and no other remaining data structures have pointers to it. Fix it. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-ivg9hifzeuokb1f5jxc2wob4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 74638034861c..77b8748ad5ed 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1814,12 +1814,14 @@ static int trace__resolve_callchain(struct trace *trace, struct perf_evsel *evse int max_stack = evsel->attr.sample_max_stack ? evsel->attr.sample_max_stack : trace->max_stack; + int err; - if (machine__resolve(trace->host, &al, sample) < 0 || - thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, max_stack)) + if (machine__resolve(trace->host, &al, sample) < 0) return -1; - return 0; + err = thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, max_stack); + addr_location__put(&al); + return err; } static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sample)