[PATCH v3 53/57] perf: Simplify perf_event_sysfs_init()
Peter Zijlstra
peterz at infradead.org
Mon Jun 12 09:08:06 UTC 2023
Signed-off-by: Peter Zijlstra (Intel) <peterz at infradead.org>
---
kernel/events/core.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -13503,11 +13503,11 @@ static int __init perf_event_sysfs_init(
struct pmu *pmu;
int ret;
- mutex_lock(&pmus_lock);
+ guard(mutex)(&pmus_lock);
ret = bus_register(&pmu_bus);
if (ret)
- goto unlock;
+ return ret;
list_for_each_entry(pmu, &pmus, entry) {
if (pmu->dev)
@@ -13517,12 +13517,8 @@ static int __init perf_event_sysfs_init(
WARN(ret, "Failed to register pmu: %s, reason %d\n", pmu->name, ret);
}
pmu_bus_running = 1;
- ret = 0;
-unlock:
- mutex_unlock(&pmus_lock);
-
- return ret;
+ return 0;
}
device_initcall(perf_event_sysfs_init);
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