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tty: serial: earlycon: use console_is_registered() 

It is not reliable to check for CON_ENABLED in order to identify if a
console is registered. Use console_is_registered() instead.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20221116162152.193147-27-john.ogness@linutronix.de
This commit is contained in:
John Ogness 2022-11-16 17:27:38 +01:06 committed by Petr Mladek
parent 34d9541ede
commit 6e35d977fa
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/serial/earlycon.c
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@ -181,7 +181,7 @@ int __init setup_earlycon(char *buf)
if (!buf || !buf[0])
return -EINVAL;
if (early_con.flags & CON_ENABLED)
if (console_is_registered(&early_con))
return -EALREADY;
again:
@ -253,7 +253,7 @@ int __init of_setup_earlycon(const struct earlycon_id *match,
bool big_endian;
u64 addr;
if (early_con.flags & CON_ENABLED)
if (console_is_registered(&early_con))
return -EALREADY;
spin_lock_init(&port->lock);