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serial: 8250: hub6: Add cleanup code

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At module load time a platform device is registered. That should be
undone when the module is unloaded.

Fixes: ec9f47cd6a ("[PATCH] Serial: Split 8250 port table")
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/4f1903ff2907f3e8bbabce345f628771e0bbd4e1.1786697789.git.u.kleine-koenig@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König (The Capable Hub) 2026-08-14 11:19:32 +02:00 committed by Greg Kroah-Hartman
parent c526404a4a
commit a300273c45
3 changed files with 11 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/tty/serial/8250/8250.h
View File

@ -324,8 +324,10 @@ static inline void serial8250_pnp_exit(void) { }
#ifdef CONFIG_SERIAL_8250_HUB6
int serial8250_hub6_init(void);
void serial8250_hub6_exit(void);
#else
static inline int serial8250_hub6_init(void) { return 0; }
static inline void serial8250_hub6_exit(void) { }
#endif
#ifdef CONFIG_SERIAL_8250_RSA

5
drivers/tty/serial/8250/8250_hub6.c
View File

@ -53,3 +53,8 @@ int __init serial8250_hub6_init(void)
{
return platform_device_register(&hub6_device);
}
void __init_or_module serial8250_hub6_exit(void)
{
platform_device_unregister(&hub6_device);
}

5
drivers/tty/serial/8250/8250_platform.c
View File

@ -326,7 +326,7 @@ static int __init serial8250_init(void)
serial8250_isa_devs = platform_device_alloc("serial8250", PLAT8250_DEV_LEGACY);
if (!serial8250_isa_devs) {
ret = -ENOMEM;
goto unreg_pnp;
goto unreg_hub6;
}
ret = platform_device_add(serial8250_isa_devs);
@ -342,6 +342,8 @@ static int __init serial8250_init(void)
platform_device_del(serial8250_isa_devs);
put_dev:
platform_device_put(serial8250_isa_devs);
unreg_hub6:
serial8250_hub6_exit();
unreg_pnp:
serial8250_pnp_exit();
unreg_uart_drv:
@ -369,6 +371,7 @@ static void __exit serial8250_exit(void)
platform_driver_unregister(&serial8250_isa_driver);
platform_device_unregister(isa_dev);
serial8250_hub6_exit();
serial8250_pnp_exit();
#ifdef CONFIG_SPARC