diff options
Diffstat (limited to 'kernel/trace/trace_events_filter.c')
| -rw-r--r-- | kernel/trace/trace_events_filter.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index ca329603d0bf..961f99b74bdd 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -500,8 +500,10 @@ static struct ftrace_event_field * find_event_field(struct ftrace_event_call *call, char *name) { struct ftrace_event_field *field; + struct list_head *head; - list_for_each_entry(field, &call->fields, link) { + head = trace_get_fields(call); + list_for_each_entry(field, head, link) { if (!strcmp(field->name, name)) return field; } @@ -625,7 +627,7 @@ static int init_subsystem_preds(struct event_subsystem *system) int err; list_for_each_entry(call, &ftrace_events, list) { - if (!call->define_fields) + if (!call->class || !call->class->define_fields) continue; if (strcmp(call->class->system, system->name) != 0) @@ -644,7 +646,7 @@ static void filter_free_subsystem_preds(struct event_subsystem *system) struct ftrace_event_call *call; list_for_each_entry(call, &ftrace_events, list) { - if (!call->define_fields) + if (!call->class || !call->class->define_fields) continue; if (strcmp(call->class->system, system->name) != 0) @@ -1249,7 +1251,7 @@ static int replace_system_preds(struct event_subsystem *system, list_for_each_entry(call, &ftrace_events, list) { struct event_filter *filter = call->filter; - if (!call->define_fields) + if (!call->class || !call->class->define_fields) continue; if (strcmp(call->class->system, system->name) != 0) |