[PATCH printk v2 34/38] serial: kgdboc: use console_list_lock instead of console_lock

John Ogness
2022-10-19T15:06:34Z

kgdboc_earlycon_init() uses the console_lock to ensure that no consoles
are unregistered until the kgdboc_earlycon is setup. The console_list_lock
should be used instead because list synchronization repsponsibility will
be removed from the console_lock in a later change.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
---
drivers/tty/serial/kgdboc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index 48000666789a..0d85596aebe2 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -547,13 +547,13 @@ static int __init kgdboc_earlycon_init(char *opt)
*/

/*
- * Hold the console_lock to guarantee that no consoles are
+ * Hold the console_list_lock to guarantee that no consoles are
* unregistered until the kgdboc_earlycon setup is complete.
* Trapping the exit() callback relies on exit() not being
* called until the trap is setup. This also allows safe
* traversal of the console list.
*/
- console_lock();
+ console_list_lock();
for_each_console(con) {
if (con->write && con->read &&
(console_is_enabled(con) || (con->flags & CON_BOOT)) &&
@@ -595,7 +595,7 @@ static int __init kgdboc_earlycon_init(char *opt)
}

unlock:
- console_unlock();
+ console_list_unlock();

/* Non-zero means malformed option so we always return zero */
return 0;
--
2.30.2