git: cbc5350359b9 - main - ucom(4): Make sure the open routine is executed synchronously.
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Date: Tue, 30 Aug 2022 14:21:16 UTC
The branch main has been updated by hselasky: URL: https://cgit.FreeBSD.org/src/commit/?id=cbc5350359b9be916cc0dc1986147013c6f90483 commit cbc5350359b9be916cc0dc1986147013c6f90483 Author: Dave Baukus <daveb@spectralogic.com> AuthorDate: 2022-08-30 14:19:40 +0000 Commit: Hans Petter Selasky <hselasky@FreeBSD.org> CommitDate: 2022-08-30 14:19:58 +0000 ucom(4): Make sure the open routine is executed synchronously. To avoid issues starting any USB transfers before the open function is complete. Differential Revision: https://reviews.freebsd.org/D36391 MFC after: 1 week Sponsored by: NVIDIA Networking --- sys/dev/usb/serial/usb_serial.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sys/dev/usb/serial/usb_serial.c b/sys/dev/usb/serial/usb_serial.c index 89e568eb13c0..8117043ed8dc 100644 --- a/sys/dev/usb/serial/usb_serial.c +++ b/sys/dev/usb/serial/usb_serial.c @@ -628,9 +628,9 @@ ucom_queue_command(struct ucom_softc *sc, task->termios_copy = *pt; /* - * Closing the device should be synchronous. + * Closing or opening the device should be synchronous. */ - if (fn == ucom_cfg_close) + if (fn == ucom_cfg_close || fn == ucom_cfg_open) usb_proc_mwait(&ssc->sc_tq, t0, t1); /*