net: aquantia: oops when shutdown on already stopped device

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In case netdev is closed at the moment of pci shutdown, aq_nic_stop
gets called second time. napi_disable in that case hangs indefinitely.
In other case, if device was never opened at all, we get oops because
of null pointer access.

We should invoke aq_nic_stop conditionally, only if device is running
at the moment of shutdown.

Reported-by: David Arcari <darcari@redhat.com>
Fixes: 90869ddfef ("net: aquantia: Implement pci shutdown callback")
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Igor Russkikh 2018-04-11 15:23:25 +03:00 • committed by David S. Miller

parent cce96d1883

commit 9a11aff25f

1 changed files with 5 additions and 3 deletions

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8

drivers/net/ethernet/aquantia/atlantic/aq_nic.c

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