llc: fix netdevice reference leaks in llc_ui_bind()

stable inclusion
from stable-v5.10.109
commit 571df3393f523b59cba87e2f3e80a3a624030f9c
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I51YBN
CVE: CVE-2022-28356

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=571df3393f523b59cba87e2f3e80a3a624030f9c



--------------------------------

commit 764f4eb6 upstream.

Whenever llc_ui_bind() and/or llc_ui_autobind()
took a reference on a netdevice but subsequently fail,
they must properly release their reference
or risk the infamous message from unregister_netdevice()
at device dismantle.

unregister_netdevice: waiting for eth0 to become free. Usage count = 3

Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: 赵子轩 <beraphin@gmail.com>
Reported-by: Stoyan Manolov <smanolov@suse.de>
Link: https://lore.kernel.org/r/20220323004147.1990845-1-eric.dumazet@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Huang Guobin <huangguobin4@huawei.com>
Reviewed-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>