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authorAlex Shi <alex.shi@linaro.org>2016-04-21 12:06:25 +0800
committerAlex Shi <alex.shi@linaro.org>2016-04-21 12:06:25 +0800
commit2bf7955152a0544342fcaed28930748cc68392ae (patch)
treed6900b5e4330d173b94fac3cbe2188eba2673771 /kernel
parentad592b70ae97800d4f5bf535d45a680649e2789e (diff)
parent8c9aef03d3b540b6885e7534a885ea25f62dd9ed (diff)
Merge tag 'v4.4.8' into linux-linaro-lsk-v4.4lsk-v4.4-16.04
This is the 4.4.8 stable release
Diffstat (limited to 'kernel')
-rw-r--r--kernel/bpf/helpers.c2
-rw-r--r--kernel/events/core.c13
2 files changed, 10 insertions, 5 deletions
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 4504ca66118d..50da680c479f 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -166,7 +166,7 @@ static u64 bpf_get_current_comm(u64 r1, u64 size, u64 r3, u64 r4, u64 r5)
if (!task)
return -EINVAL;
- memcpy(buf, task->comm, min_t(size_t, size, sizeof(task->comm)));
+ strlcpy(buf, task->comm, min_t(size_t, size, sizeof(task->comm)));
return 0;
}
diff --git a/kernel/events/core.c b/kernel/events/core.c
index faf2067fc8e2..1e889a078dbc 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1580,14 +1580,14 @@ event_sched_out(struct perf_event *event,
perf_pmu_disable(event->pmu);
+ event->tstamp_stopped = tstamp;
+ event->pmu->del(event, 0);
+ event->oncpu = -1;
event->state = PERF_EVENT_STATE_INACTIVE;
if (event->pending_disable) {
event->pending_disable = 0;
event->state = PERF_EVENT_STATE_OFF;
}
- event->tstamp_stopped = tstamp;
- event->pmu->del(event, 0);
- event->oncpu = -1;
if (!is_software_event(event))
cpuctx->active_oncpu--;
@@ -8583,7 +8583,12 @@ err_context:
perf_unpin_context(ctx);
put_ctx(ctx);
err_alloc:
- free_event(event);
+ /*
+ * If event_file is set, the fput() above will have called ->release()
+ * and that will take care of freeing the event.
+ */
+ if (!event_file)
+ free_event(event);
err_cpus:
put_online_cpus();
err_task: