perf tools: Fix SMT detection fast read path

[linux-2.6-microblaze.git] / tools / perf / util / smt.c

diff --git a/tools/perf/util/smt.c b/tools/perf/util/smt.c
index 20bacd5..34f1b1b 100644 (file)
--- a/tools/perf/util/smt.c
+++ b/tools/perf/util/smt.c
@@ -15,7 +15,7 @@ int smt_on(void)
        if (cached)
                return cached_result;
 
-       if (sysfs__read_int("devices/system/cpu/smt/active", &cached_result) > 0)
+       if (sysfs__read_int("devices/system/cpu/smt/active", &cached_result) >= 0)
                goto done;
 
        ncpu = sysconf(_SC_NPROCESSORS_CONF);