Unverified Commit 29f31715 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!6423 tracing/trigger: Fix to return error if failed to alloc snapshot 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zheng Yejian <zhengyejian1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/5DSJKHC74IVIS3VWXQS6NLRVBFWBMJX6/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9HL6U 
 
Link:https://gitee.com/openeuler/kernel/pulls/6423

 

Reviewed-by: default avatarXu Kuohai <xukuohai@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents f0cb6285 4b28b68d

kernel/trace/trace_events_trigger.c

+4 −2
Original line number Diff line number Diff line
@@ -1140,8 +1140,10 @@ register_snapshot_trigger(char *glob, struct event_trigger_ops *ops, 
			  struct event_trigger_data *data,

			  struct trace_event_file *file)

{

	if (tracing_alloc_snapshot_instance(file->tr) != 0)

		return 0;

	int ret = tracing_alloc_snapshot_instance(file->tr);



	if (ret < 0)

		return ret;



	return register_trigger(glob, ops, data, file);

}