This is a note to let you know that I've just added the patch titled
serial: txx9: add missing platform_driver_unregister() on error in serial_txx9_init
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
serial-txx9-add-missing-platform_driver_unregister-on-error-in-serial_txx9_init.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0c5fc92622ed5531ff324b20f014e9e3092f0187 Mon Sep 17 00:00:00 2001
From: Qinglang Miao <miaoqinglang@xxxxxxxxxx>
Date: Tue, 3 Nov 2020 16:49:42 +0800
Subject: serial: txx9: add missing platform_driver_unregister() on error in serial_txx9_init
From: Qinglang Miao <miaoqinglang@xxxxxxxxxx>
commit 0c5fc92622ed5531ff324b20f014e9e3092f0187 upstream.
Add the missing platform_driver_unregister() before return
from serial_txx9_init in the error handling case when failed
to register serial_txx9_pci_driver with macro ENABLE_SERIAL_TXX9_PCI
defined.
Fixes: ab4382d27412 ("tty: move drivers/serial/ to drivers/tty/serial/")
Signed-off-by: Qinglang Miao <miaoqinglang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201103084942.109076-1-miaoqinglang@xxxxxxxxxx
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/serial_txx9.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -1283,6 +1283,9 @@ static int __init serial_txx9_init(void)
#ifdef ENABLE_SERIAL_TXX9_PCI
ret = pci_register_driver(&serial_txx9_pci_driver);
+ if (ret) {
+ platform_driver_unregister(&serial_txx9_plat_driver);
+ }
#endif
if (ret == 0)
goto out;
Patches currently in stable-queue which might be from miaoqinglang@xxxxxxxxxx are
queue-5.4/serial-txx9-add-missing-platform_driver_unregister-on-error-in-serial_txx9_init.patch
