tracing: Add missing nest end to synth_event_trace_start() error case

If the ring_buffer reserve in synth_event_trace_start() fails, the matching ring_buffer_nest_end() should be called in the error code, since nothing else will ever call it in this case. Link: http://lkml.kernel.org/r/20abc444b3eeff76425f895815380abe7aa53ff8.1581374549.git.zanussi@kernel.org

Tom Zanussi committed 6 years ago

Commit d0904091 parent 97378001 file · +1 −0Browse files

Unified · Split

kernel/trace/trace_events_hist.c+1−0

@@ -2043,6 +2043,7 @@ int synth_event_trace_start(struct trace_event_file *file, · 2042 unmodified lines
2043	entry = trace_event_buffer_reserve(&trace_state->fbuffer, file,	2043	entry = trace_event_buffer_reserve(&trace_state->fbuffer, file,
2044	sizeof(*entry) + fields_size);	2044	sizeof(*entry) + fields_size);
2045	if (!entry) {	2045	if (!entry) {
		2046	ring_buffer_nest_end(trace_state->buffer);
2046	ret = -EINVAL;	2047	ret = -EINVAL;
2047	goto out;	2048	goto out;
2048	}	2049	}