diff options
Diffstat (limited to 'kernel/trace/trace_kprobe.c')
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 7579c53bb053..0ba3239c0270 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -371,31 +371,24 @@ static int enable_trace_kprobe(struct trace_event_call *call, if (enabled) return 0; - enabled = false; list_for_each_entry(pos, trace_probe_probe_list(tp), list) { tk = container_of(pos, struct trace_kprobe, tp); if (trace_kprobe_has_gone(tk)) continue; ret = __enable_trace_kprobe(tk); - if (ret) { - if (enabled) { - __disable_trace_kprobe(tp); - enabled = false; - } + if (ret) break; - } enabled = true; } - if (!enabled) { - /* No probe is enabled. Roll back */ + if (ret) { + /* Failed to enable one of them. Roll back all */ + if (enabled) + __disable_trace_kprobe(tp); if (file) trace_probe_remove_file(tp, file); else trace_probe_clear_flag(tp, TP_FLAG_PROFILE); - if (!ret) - /* Since all probes are gone, this is not available */ - ret = -EADDRNOTAVAIL; } return ret; |