tty: tty_io: use console_list_lock for list synchronization

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show_cons_active() uses the console_lock to gather information
on registered consoles. It requires that no consoles are unregistered
until it is finished. The console_list_lock should be used because
list synchronization responsibility will be removed from the
console_lock in a later change.

Note, the console_lock is still needed to serialize the device()
callback with other console operations.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20221116162152.193147-34-john.ogness@linutronix.de

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John Ogness 2022-11-16 17:27:45 +01:06 • committed by Petr Mladek

parent 6f8836756f

commit 7c2af0f634

1 changed files with 12 additions and 6 deletions

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drivers/tty/tty_io.c

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