printk: fix name/type/scope of preferred_console var

The variable preferred_console is used only inside register_console()
and its semantics is boolean.  It is negative when no console has been
made preferred.

Make it static bool and rename to has_preferred.

Renaming was suggested by Peter Hurley

Link: http://lkml.kernel.org/r/[email protected]
Cc: Sudeep Holla <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Peter Hurley <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Robin Murphy <[email protected]>
Cc: "Nair, Jayachandran" <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Aleksey Makarov <[email protected]>
Reviewed-by: Steven Rostedt (VMware) <[email protected]>
Reviewed-by: Sergey Senozhatsky <[email protected]>
Signed-off-by: Petr Mladek <[email protected]>

0 files changed, 0 insertions, 0 deletions