diff options
| -rw-r--r-- | kernel/trace/trace_events.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 43e9545b5cf3..86db6ee6f26c 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -3799,24 +3799,22 @@ event_enable_func(struct trace_array *tr, struct ftrace_hash *hash, ret = -ENOMEM; - if (!param) - goto out_reg; - - number = strsep(¶m, ":"); + if (param) { + number = strsep(¶m, ":"); - ret = -EINVAL; - if (!strlen(number)) - goto out; + ret = -EINVAL; + if (!strlen(number)) + goto out; - /* - * We use the callback data field (which is a pointer) - * as our counter. - */ - ret = kstrtoul(number, 0, &count); - if (ret) - goto out; + /* + * We use the callback data field (which is a pointer) + * as our counter. + */ + ret = kstrtoul(number, 0, &count); + if (ret) + goto out; + } - out_reg: /* Don't let event modules unload while probe registered */ ret = trace_event_try_get_ref(file->event_call); if (!ret) { |