[PATCH] hvc_console: returning 0 from put_chars is not an error

[Scott Wood]

Christian Borntraeger wrote:
> About the backends, there are some that spin until the text is delivered (e.g. 
> virtio) , others can drop (e.g. iucv is a connection oriented protocol and it 
> will (and has to) drop if there is no connection). 

Sure, dropping due to not having a connection makes sense.  That's 
different from merely being busy.  Can the iucv code tell the difference 
between those two states?

-Scott