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| author | Catalin Marinas <catalin.marinas@arm.com> | 2017-08-18 18:30:30 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2017-08-18 18:30:30 +0100 |
| commit | cda94408d72526b520b7c87b91f5158bb723b900 (patch) | |
| tree | e61e634c9198e41a1a0137d96c5455e25b8b300d /drivers/perf/arm_pmu.c | |
| parent | df5b95bee1ed7009a2090e9924e7a96e14850d56 (diff) | |
| parent | e884f80cf2a76a86547e2316982e1f200f556ddf (diff) | |
Merge branch 'for-next/perf' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into for-next/core
* 'for-next/perf' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux:
arm64: perf: add support for Cortex-A35
arm64: perf: add support for Cortex-A73
arm64: perf: Remove redundant entries from CPU-specific event maps
arm64: perf: Connect additional events to pmu counters
arm64: perf: Allow standard PMUv3 events to be extended by the CPU type
perf: xgene: Remove unnecessary managed resources cleanup
arm64: perf: Allow more than one cycle counter to be used
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; } |