#220 Stop the ACIA core from trying to talk to unopened devices.

[Greg King]

This patch fixes a bug that's described in bug ticket 1193.

Then, an ACIA won't try to access the status flags of a device that it hasn't opened. We won't see "invalid fd" error messages.

[gpz]

it would really help if you'd keep all those unrelated formatting "fixes" out of your patches. all the noise makes it really hard to read.

[gpz]

minimal patch applied in r37529. whatever the rest tries to fix, please explain and make a new patch

[gpz]

closing (no feedback)