Hello, this series contains to fixes that target v6.9 and IMHO should also get backported to stable. For that reason I added a Cc: stable line to both patches. The first patch isn't very critical, it only improves the driver's behaviour if another problem pops up in the future that results in an unhandled irq. The second fixes a real problem for me. Best regards Uwe Uwe Kleine-König (2): serial: stm32: Return IRQ_NONE in the ISR if no handling happend serial: stm32: Reset .throttled state in .startup() drivers/tty/serial/stm32-usart.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) base-commit: 4eab358930711bbeb85bf5ee267d0d42d3394c2c -- 2.43.0