diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/kernel/perf_cpum_sf.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c index b79d51459cf2..874762a51c54 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -1616,14 +1616,17 @@ static int __init init_cpum_sampling_pmu(void) } sfdbg = debug_register(KMSG_COMPONENT, 2, 1, 80); - if (!sfdbg) + if (!sfdbg) { pr_err("Registering for s390dbf failed\n"); + return -ENOMEM; + } debug_register_view(sfdbg, &debug_sprintf_view); err = register_external_irq(EXT_IRQ_MEASURE_ALERT, cpumf_measurement_alert); if (err) { pr_cpumsf_err(RS_INIT_FAILURE_ALRT); + debug_unregister(sfdbg); goto out; } @@ -1632,6 +1635,7 @@ static int __init init_cpum_sampling_pmu(void) pr_cpumsf_err(RS_INIT_FAILURE_PERF); unregister_external_irq(EXT_IRQ_MEASURE_ALERT, cpumf_measurement_alert); + debug_unregister(sfdbg); goto out; } perf_cpu_notifier(cpumf_pmu_notifier); |