diff options
| -rw-r--r-- | kernel/trace/trace.h | 2 | ||||
| -rw-r--r-- | kernel/trace/trace_events_filter.c | 10 |
2 files changed, 10 insertions, 2 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index d2612016de94..3d2ad5f83e94 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -1312,7 +1312,7 @@ void trace_event_init(void); void trace_event_enum_update(struct trace_enum_map **map, int len); #else static inline void __init trace_event_init(void) { } -static inlin void trace_event_enum_update(struct trace_enum_map **map, int len) { } +static inline void trace_event_enum_update(struct trace_enum_map **map, int len) { } #endif extern struct trace_iterator *tracepoint_print_iter; diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index 9d4a78f45dc4..1c92dfa1dd17 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -1056,6 +1056,9 @@ static void parse_init(struct filter_parse_state *ps, static char infix_next(struct filter_parse_state *ps) { + if (!ps->infix.cnt) + return 0; + ps->infix.cnt--; return ps->infix.string[ps->infix.tail++]; @@ -1071,6 +1074,9 @@ static char infix_peek(struct filter_parse_state *ps) static void infix_advance(struct filter_parse_state *ps) { + if (!ps->infix.cnt) + return; + ps->infix.cnt--; ps->infix.tail++; } @@ -1385,7 +1391,9 @@ static int check_preds(struct filter_parse_state *ps) if (elt->op != OP_NOT) cnt--; n_normal_preds++; - WARN_ON_ONCE(cnt < 0); + /* all ops should have operands */ + if (cnt < 0) + break; } if (cnt != 1 || !n_normal_preds || n_logical_preds >= n_normal_preds) { |