diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c index 0bc491252a44c33f423ee7e910bdac1bb797097c..4163ff5174715da102eb8d8ab8b18d6ae784da43 100644 --- a/drivers/perf/riscv_pmu_sbi.c +++ b/drivers/perf/riscv_pmu_sbi.c @@ -855,6 +855,12 @@ static int pmu_sbi_device_probe(struct platform_device *pdev) goto out_free; } + /* It is possible to get from SBI more than max number of counters */ + if (num_counters > RISCV_MAX_COUNTERS) { + num_counters = RISCV_MAX_COUNTERS; + pr_info("SBI returned more than maximum number of counters. Limiting the number of counters to %d\n", num_counters); + } + /* cache all the information about counters now */ if (pmu_sbi_get_ctrinfo(num_counters, &cmask)) goto out_free;