net: ethoc: enable NAPI before poll may be scheduled
authorMax Filippov <jcmvbkbc@gmail.com>
Tue, 6 Jun 2017 01:31:16 +0000 (18:31 -0700)
committerDavid S. Miller <davem@davemloft.net>
Tue, 6 Jun 2017 20:22:51 +0000 (16:22 -0400)
commitd220b942a4b6a0640aee78841608f4aa5e8e185e
tree92eee1af3dffa61287c917453c3b59ca01b58f87
parent1020ce3108cc26fbf09d70550ea2937cb1a211d2
net: ethoc: enable NAPI before poll may be scheduled

ethoc_reset enables device interrupts, ethoc_interrupt may schedule a
NAPI poll before NAPI is enabled in the ethoc_open, which results in
device being unable to send or receive anything until it's closed and
reopened. In case the device is flooded with ingress packets it may be
unable to recover at all.
Move napi_enable above ethoc_reset in the ethoc_open to fix that.

Fixes: a1702857724f ("net: Add support for the OpenCores 10/100 Mbps Ethernet MAC.")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/ethoc.c