Merge branches 'pm-core', 'pm-qos', 'pm-domains' and 'pm-opp'

[linux.git] / tools / perf / util / pmu.c

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 82a654dec6662b1ba635b3217c31af048c815f91..49bfee0e3d9ed0b483180a74b7bfd96954f4968b 100644 (file)
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -945,12 +945,12 @@ static int check_info_data(struct perf_pmu_alias *alias,
         * define unit, scale and snapshot, fail
         * if there's more than one.
         */
-       if ((info->unit && alias->unit) ||
+       if ((info->unit && alias->unit[0]) ||
            (info->scale && alias->scale) ||
            (info->snapshot && alias->snapshot))
                return -EINVAL;
 
-       if (alias->unit)
+       if (alias->unit[0])
                info->unit = alias->unit;
 
        if (alias->scale)