Merge branch 'net-aquantia-minor-bug-fixes-after-static-analysis'

Igor Russkikh says:

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net: aquantia: minor bug fixes after static analysis

This patchset fixes minor errors and warnings found by smatch and kasan.

Extra patch is to replace AQ_HW_WAIT_FOR with readx_poll_timeout
to improve readability.

V2:
use readx_poll
resubmitted to net-next since the changeset became quite big.
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Signed-off-by: David S. Miller <davem@davemloft.net>