tree 81313e07437bcd459c0e29b1c7b4dad6d213dab2
parent af49dda1e60e1232e5c2bd811e5654fa89451b57
author Aaro Koskinen <aaro.koskinen@nokia.com> 1582735741 +0200
committer Dinh Nguyen <dinh.nguyen@intel.com> 1586959873 -0500

net: stmmac: fix notifier registration

[ Upstream commit 474a31e13a4e9749fb3ee55794d69d0f17ee0998 ]

We cannot register the same netdev notifier multiple times when probing
stmmac devices. Register the notifier only once in module init, and also
make debugfs creation/deletion safe against simultaneous notifier call.

Fixes: 481a7d154cbb ("stmmac: debugfs entry name is not be changed when udev rename device name.")
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>