Commit-ID: 940c5b2971de443df22eed0441bc74fb0116e9f5 Gitweb: http://git.kernel.org/tip/940c5b2971de443df22eed0441bc74fb0116e9f5 Author: Lin Ming <ming.m.lin@xxxxxxxxx> AuthorDate: Sun, 27 Feb 2011 21:13:31 +0800 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Fri, 4 Mar 2011 11:32:50 +0100 perf: Fix the missing event initialization when pmu is found in idr Currently, the event is not initialized if pmu is found in idr. This never causes bug just because now no pmu is associated with the idr id. Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx> Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> LKML-Reference: <1298812411.2699.9.camel@localhost> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- kernel/perf_event.c | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-) diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 64a018e..821ce82 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -6098,17 +6098,22 @@ struct pmu *perf_init_event(struct perf_event *event) { struct pmu *pmu = NULL; int idx; + int ret; idx = srcu_read_lock(&pmus_srcu); rcu_read_lock(); pmu = idr_find(&pmu_idr, event->attr.type); rcu_read_unlock(); - if (pmu) + if (pmu) { + ret = pmu->event_init(event); + if (ret) + pmu = ERR_PTR(ret); goto unlock; + } list_for_each_entry_rcu(pmu, &pmus, entry) { - int ret = pmu->event_init(event); + ret = pmu->event_init(event); if (!ret) goto unlock; -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html