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
@@ -1287,6 +1287,9 @@ 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;
