!6856 media: dvb-frontends: avoid stack overflow warnings with clang

Merge Pull Request from: @ci-robot 
 
PR sync from: Cai Xinchen <caixinchen1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/4V4JS2SNFRP5HHHGDWTZDVXLQ33NE3FB/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9L9J6 
 
Link:https://gitee.com/openeuler/kernel/pulls/6856

 

Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>