diff --git a/include/trace/events/qdisc.h b/include/trace/events/qdisc.h index a50df41634c5..980cb7a74e35 100644 --- a/include/trace/events/qdisc.h +++ b/include/trace/events/qdisc.h @@ -78,14 +78,14 @@ TRACE_EVENT(qdisc_destroy, TP_ARGS(q), TP_STRUCT__entry( - __string( dev, qdisc_dev(q)->name ) + __string( dev, qdisc_dev(q) ? qdisc_dev(q)->name : "(null)" ) __string( kind, q->ops->id ) __field( u32, parent ) __field( u32, handle ) ), TP_fast_assign( - __assign_str(dev, qdisc_dev(q)->name); + __assign_str(dev, qdisc_dev(q) ? qdisc_dev(q)->name : "(null)"); __assign_str(kind, q->ops->id); __entry->parent = q->parent; __entry->handle = q->handle;