Re: [PATCH 6/8] printk: Do not set Braille console as preferred_console

[Chris Down <chris@chrisdown.name>]

Petr Mladek writes:
>The Braille console reuses the framework for handling consoles preferred
>via the command line. However, it is a special-purpose interface that
>neither receives standard printk messages nor associates with
>/dev/console.
>
>Currently, the "preferred_dev_console" variable can point to a Braille
>console entry in the "preferred_consoles[]" array. This occurs if an
>entry was first created for a non-Braille console, but a later 'console='
>parameter redefined it as a Braille console.
>
>Since a Braille console will only ever be enabled as such, it should not
>be tracked as the primary system console. Adjust the logic to ensure
>"preferred_dev_console" continues to point to the previously designated
>normal console instead.
>
>Signed-off-by: Petr Mladek <pmladek@suse.com>

Looks good to me, after fixing John's comment about resetting 
preferred_dev_console_prev, please feel free to add:

Acked-by: Chris Down <chris@chrisdown.name>