Insert extra paranoia into the ath(4) driver.
Insert extra paranoia into the ath(4) driver.

This function must be called with both the source and destination TXQs
locked or things will get hairy.

I added this as part of some debugging in a PR but it turned out to not
be the cause.  I still think it's -correct- so, here it is.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase