perf thread: Make thread__find_symbol() return the symbol searched

Instead of just returning it in al.sym, allowing for some simplification
in its users, and to make it consistent with thread__find_map().

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-4axi2sigslffdixzxbehvgoj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 5 deletions

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 38fcbb5ddce8..a827919c6263 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -533,11 +533,8 @@ static const char *cat_backtrace(union perf_event *event,
                 }
 
                 tal.filtered = 0;
-                thread__find_symbol(al.thread, cpumode, ip, &tal);
-
-                if (tal.sym)
-                        fprintf(f, "..... %016" PRIx64 " %s\n", ip,
-                                tal.sym->name);
+                if (thread__find_symbol(al.thread, cpumode, ip, &tal))
+                        fprintf(f, "..... %016" PRIx64 " %s\n", ip, tal.sym->name);
                 else
                         fprintf(f, "..... %016" PRIx64 "\n", ip);
         }