tracing: Add trace_array parameter to create_event_filter()

Pass in the trace_array that represents the instance the filter being
changed is in to create_event_filter(). This will allow for error messages
that happen when writing to the filter can be displayed in the proper
instance "error_log" file.

Note, for calls to create_filter() (that was also modified to support
create_event_filter()), that changes filters that do not exist in a instance
(for perf for example), NULL may be passed in, which means that there will
not be any message to log for that filter.

Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Tested-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

kernel/trace/trace_events_trigger.c

@@ -731,7 +731,8 @@ int set_trigger_filter(char *filter_str,
 		goto out;
 
 	/* The filter is for the 'trigger' event, not the triggered event */
-	ret = create_event_filter(file->event_call, filter_str, false, &filter);
+	ret = create_event_filter(file->tr, file->event_call,
+				  filter_str, false, &filter);
 	/*
 	 * If create_event_filter() fails, filter still needs to be freed.
 	 * Which the calling code will do with data->filter.