!1301 [sync] PR-1270: media: dvb-core: Fix kernel WARNING for blocking operation in wait_event*()

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/1270 
 
PR sync from: Chen Jiahao <chenjiahao16@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/LKM3OGRPHUFIBAXN26GKXPU4STERGPYH/ 
 
 
Link:https://gitee.com/openeuler/kernel/pulls/1301

 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>