[src-draft/trunk]: src/sys/dev/usb Hold lock while scheduling transfer.

[Nathanial Sloss <nat%netbsd.org@localhost>]

details:   https://anonhg.NetBSD.org/src-all/rev/b6d981fa1c00
branches:  trunk
changeset: 377043:b6d981fa1c00
user:      Nathanial Sloss <nat%netbsd.org@localhost>
date:      Mon Jan 03 04:07:04 2022 +1100

description:
Hold lock while scheduling transfer.

diffstat:

 sys/dev/usb/usbwifi.c |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (18 lines):

diff -r a8988a0487c0 -r b6d981fa1c00 sys/dev/usb/usbwifi.c
--- a/sys/dev/usb/usbwifi.c     Sun Jan 02 12:11:26 2022 +1100
+++ b/sys/dev/usb/usbwifi.c     Mon Jan 03 04:07:04 2022 +1100
@@ -324,12 +324,12 @@ done:
        if (uwp->uwp_dying || uwp->uwp_stopping)
                goto out;
 
-       mutex_exit(&uwp->uwp_rxlock);
-
        /* Setup new transfer. */
        usbd_setup_xfer(xfer, c, c->uwc_buf, uw->uw_rx_bufsz,
            uw->uw_rx_xfer_flags, uw->uw_rx_xfer_timeout, usbwifi_rxeof);
        usbd_transfer(xfer);
+       mutex_exit(&uwp->uwp_rxlock);
+
        return;
 
 out: