tree dada029b120f9299bef0e93e2c9434c85da4c965
parent 6086ebca13ddc9cfaaa25248ba8ebef35103fb74
author Anton Vorontsov <avorontsov@ru.mvista.com> 1229588602 +0000
committer David S. Miller <davem@davemloft.net> 1229669333 -0800

ucc_geth: Fix endless loop in stop_{tx,rx} routines

Currently the routines wait for the various bits w/o an assumption that
bits may never get set. When timeouts happen I see that these bits never
get set and so the routines hang the kernel.

With this patch we'll wait the graceful stop for 100 ms, and then will
simply exit. There is nothing* we can do about that, but it's OK since
we'll do full reset later.

* Well, actually, there is also not-graceful variant for the TX stop,
  but specs says that we never should use it.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>