diff options
| -rw-r--r-- | tools/perf/util/pmu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 1539960ba23b..f588cce60194 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -865,6 +865,12 @@ static char *pmu_id(const char *name) if (filename__read_str(path, &str, &len) < 0) return NULL; + /* empty identifier file — nothing useful */ + if (len == 0) { + free(str); + return NULL; + } + str[len - 1] = 0; /* remove line feed */ return str; |