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);
/*