stable inclusion
from stable-v5.10.134
commit b1158677d46bd67e32d6606d1f8c01d8ba9e6d22
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5ZVR7

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b1158677d46bd67e32d6606d1f8c01d8ba9e6d22

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

commit 2014beea upstream.

Commit 93ee31f1 ("[NET]: Fix free_netdev on register_netdev
failure.") moved net_set_todo() outside of rollback_registered()
so that rollback_registered() can be used in the failure path of
register_netdevice() but without risking a double free.

Since commit cf124db5 ("net: Fix inconsistent teardown and
release of private netdev state."), however, we have a better
way of handling that condition, since destructors don't call
free_netdev() directly.

After the change in commit c269a24c ("net: make free_netdev()
more lenient with unregistering devices") we can now move
net_set_todo() back.
Reviewed-by: NEdwin Peer <edwin.peer@broadcom.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Signed-off-by: NFedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NWei Li <liwei391@huawei.com>