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| author | Linus Walleij | 2019-11-13 23:10:52 +0100 |
|---|---|---|
| committer | Linus Walleij | 2019-11-13 23:10:52 +0100 |
| commit | 1566a6a30bf4d85849bab7e389392d6d3de1530e (patch) | |
| tree | bbc979f430cb07d41f7b35524027e25e7a4b9fe6 /kernel/trace/trace_event_perf.c | |
| parent | 3af50e548019f6ee26d0ed4340f4ab980f884696 (diff) | |
| parent | d6d5df1db6e9d7f8f76d2911707f7d5877251b02 (diff) | |
Merge tag 'v5.4-rc5' into devel
Linux 5.4-rc5
Diffstat (limited to 'kernel/trace/trace_event_perf.c')
| -rw-r--r-- | kernel/trace/trace_event_perf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c index 0892e38ed6fb..a9dfa04ffa44 100644 --- a/kernel/trace/trace_event_perf.c +++ b/kernel/trace/trace_event_perf.c @@ -272,9 +272,11 @@ int perf_kprobe_init(struct perf_event *p_event, bool is_retprobe) goto out; } + mutex_lock(&event_mutex); ret = perf_trace_event_init(tp_event, p_event); if (ret) destroy_local_trace_kprobe(tp_event); + mutex_unlock(&event_mutex); out: kfree(func); return ret; @@ -282,8 +284,10 @@ out: void perf_kprobe_destroy(struct perf_event *p_event) { + mutex_lock(&event_mutex); perf_trace_event_close(p_event); perf_trace_event_unreg(p_event); + mutex_unlock(&event_mutex); destroy_local_trace_kprobe(p_event->tp_event); } |