!1655 can: bcm: Fix UAF in bcm_proc_show()

Merge Pull Request from: @ci-robot 
 
PR sync from: Dong Chenchen <dongchenchen2@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/7EQSQN64OKQD5VUXFEKT6K4XAFZ52LBI/ 
 
https://gitee.com/openeuler/kernel/issues/I7R1N4 
 
Link:https://gitee.com/openeuler/kernel/pulls/1655

 

Reviewed-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Liu YongQiang <liuyongqiang13@huawei.com>