net: dsa: complete and fix the dsa unbinding

In order to cleanly unbind the dsa core, either as a module removal, or a platform device unbind, switch the allocation the their devm_ counterparts and complete the destroy functions.

First, the missing kfree were added, the remove function were completed then kfree were removed in favor to devm_ calls.

The last patch is an way to cleanly exit the probe when no switch is found in the discover process.

The patches are based on the current net.

Neil Armstrong (5):
net: dsa: add missing kfree on remove
net: dsa: add missing dsa_switch mdiobus remove
net: dsa: complete dsa_switch_destroy
net: dsa: switch to devm_ calls and remove kfree calls
net: dsa: exit probe if no switch were found

 net/dsa/dsa.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 56 insertions(+), 11 deletions(-)

1.9.1