USB: serial: report unsupported break signalling
authorJohan Hovold <johan@kernel.org>
Sun, 4 Jun 2023 12:35:05 +0000 (14:35 +0200)
committerJohan Hovold <johan@kernel.org>
Wed, 7 Jun 2023 15:00:24 +0000 (17:00 +0200)
commitc9d934053d9e850bc901b6425eacb5fe3d4b1738
tree70912a8787565c9472b6220c31ae16d0994e209a
parentf4bbae27b32ea0ffb9e25931b9769600e8d8a664
USB: serial: report unsupported break signalling

Instead of returning success when a driver does not support break
signalling, return an error to let user space know and to avoid waiting
when break is not supported.

Tested-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/usb-serial.c