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path: root/arch/s390/kernel/perf_cpum_sf.c
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Diffstat (limited to 'arch/s390/kernel/perf_cpum_sf.c')
-rw-r--r--arch/s390/kernel/perf_cpum_sf.c6
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 5c53e977be62..7bf604ff50a1 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -2045,14 +2045,17 @@ 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;
}
@@ -2061,6 +2064,7 @@ 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;
}