[PATCH] b43: use rx desc underrun interrupt

[Thommy Jakobsson]

New response since my phone answered with html

On Sun, 21 Apr 2013, Michael B?sch wrote:

> Hmmm. While this does work (because the register and ring->current_slot contain the same
> value at this point), I'd prefer if you write ring->current_slot - 1
> to the stop-index-register.
The reason for the interrupt is because the current index in the device is
the same as the last index. That's why I read the value from the device. But
I fix it, don't have a strong opinion about it.

> Also, the comment needs to be updated
Crap, missed that.

/thommy