diff options
| -rw-r--r-- | tools/perf/util/pmu.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 91dca604c422..881b75490533 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -753,9 +753,9 @@ void print_pmu_events(const char *event_glob, bool name_only) if (pmu->selectable) len++; } - aliases = malloc(sizeof(char *) * len); + aliases = zalloc(sizeof(char *) * len); if (!aliases) - return; + goto out_enomem; pmu = NULL; j = 0; while ((pmu = perf_pmu__scan(pmu)) != NULL) { @@ -768,16 +768,20 @@ void print_pmu_events(const char *event_glob, bool name_only) (!is_cpu && strglobmatch(alias->name, event_glob)))) continue; - aliases[j] = name; + if (is_cpu && !name_only) - aliases[j] = format_alias_or(buf, sizeof(buf), - pmu, alias); - aliases[j] = strdup(aliases[j]); + name = format_alias_or(buf, sizeof(buf), pmu, alias); + + aliases[j] = strdup(name); + if (aliases[j] == NULL) + goto out_enomem; j++; } if (pmu->selectable) { - scnprintf(buf, sizeof(buf), "%s//", pmu->name); - aliases[j] = strdup(buf); + char *s; + if (asprintf(&s, "%s//", pmu->name) < 0) + goto out_enomem; + aliases[j] = s; j++; } } @@ -789,12 +793,20 @@ void print_pmu_events(const char *event_glob, bool name_only) continue; } printf(" %-50s [Kernel PMU event]\n", aliases[j]); - zfree(&aliases[j]); printed++; } if (printed) printf("\n"); - free(aliases); +out_free: + for (j = 0; j < len; j++) + zfree(&aliases[j]); + zfree(&aliases); + return; + +out_enomem: + printf("FATAL: not enough memory to print PMU events\n"); + if (aliases) + goto out_free; } bool pmu_have_event(const char *pname, const char *name) |