diff options
Diffstat (limited to 'kernel/trace/trace_eprobe.c')
| -rw-r--r-- | kernel/trace/trace_eprobe.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/trace/trace_eprobe.c b/kernel/trace/trace_eprobe.c index a30f21499e81..4a0e9d927443 100644 --- a/kernel/trace/trace_eprobe.c +++ b/kernel/trace/trace_eprobe.c @@ -839,8 +839,11 @@ static int trace_eprobe_tp_update_arg(struct trace_eprobe *ep, const char *argv[ if (ret) return ret; - if (ep->tp.args[i].code->op == FETCH_OP_TP_ARG) + if (ep->tp.args[i].code->op == FETCH_OP_TP_ARG) { ret = trace_eprobe_tp_arg_update(ep, i); + if (ret) + trace_probe_log_err(0, BAD_ATTACH_ARG); + } return ret; } @@ -880,8 +883,10 @@ static int __trace_eprobe_create(int argc, const char *argv[]) trace_probe_log_set_index(1); sys_event = argv[1]; ret = traceprobe_parse_event_name(&sys_event, &sys_name, buf2, 0); - if (!sys_event || !sys_name) + if (!sys_event || !sys_name) { + trace_probe_log_err(0, NO_EVENT_INFO); goto parse_error; + } if (!event) { strscpy(buf1, argv[1], MAX_EVENT_NAME_LEN); @@ -896,6 +901,8 @@ static int __trace_eprobe_create(int argc, const char *argv[]) if (IS_ERR(ep)) { ret = PTR_ERR(ep); + if (ret == -ENODEV) + trace_probe_log_err(0, BAD_ATTACH_EVENT); /* This must return -ENOMEM or missing event, else there is a bug */ WARN_ON_ONCE(ret != -ENOMEM && ret != -ENODEV); ep = NULL; |