diff options
Diffstat (limited to 'drivers/perf/arm_pmu.c')
| -rw-r--r-- | drivers/perf/arm_pmu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c index 1c5e0f333779..d14fc2e67f93 100644 --- a/drivers/perf/arm_pmu.c +++ b/drivers/perf/arm_pmu.c @@ -47,6 +47,9 @@ armpmu_map_cache_event(const unsigned (*cache_map) if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX) return -EINVAL; + if (!cache_map) + return -ENOENT; + ret = (int)(*cache_map)[cache_type][cache_op][cache_result]; if (ret == CACHE_OP_UNSUPPORTED) @@ -63,6 +66,9 @@ armpmu_map_hw_event(const unsigned (*event_map)[PERF_COUNT_HW_MAX], u64 config) if (config >= PERF_COUNT_HW_MAX) return -EINVAL; + if (!event_map) + return -ENOENT; + mapping = (*event_map)[config]; return mapping == HW_OP_UNSUPPORTED ? -ENOENT : mapping; } |