perf session: Remove one more exit() call from library code

Return NULL instead and make the caller propagate the error.

LKML-Reference: <new-submission>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 1fb13e5..6767f10 100644 (file)
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -89,9 +89,12 @@ static int perf_session__add_hist_entry(struct perf_session *self,
        struct event_stat_id *stats;
        struct perf_event_attr *attr;
 
-       if ((sort__has_parent || symbol_conf.use_callchain) && data->callchain)
+       if ((sort__has_parent || symbol_conf.use_callchain) && data->callchain) {
                syms = perf_session__resolve_callchain(self, al->thread,
                                                       data->callchain, &parent);
+               if (syms == NULL)
+                       return -ENOMEM;
+       }
 
        attr = perf_header__find_attr(data->id, &self->header);
        if (attr)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 9da5e72..ddf288f 100644 (file)
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -118,16 +118,11 @@ struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
                                                   struct symbol **parent)
 {
        u8 cpumode = PERF_RECORD_MISC_USER;
-       struct map_symbol *syms = NULL;
        unsigned int i;
+       struct map_symbol *syms = calloc(chain->nr, sizeof(*syms));
 
-       if (symbol_conf.use_callchain) {
-               syms = calloc(chain->nr, sizeof(*syms));
-               if (!syms) {
-                       fprintf(stderr, "Can't allocate memory for symbols\n");
-                       exit(-1);
-               }
-       }
+       if (!syms)
+               return NULL;
 
        for (i = 0; i < chain->nr; i++) {
                u64 ip = chain->ips[i];