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mctp: serial: cancel tx work on ldisc close

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We want to ensure that the tx work has finished before returning from
the ldisc close op, so do a synchronous cancel.

Reported-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jeremy Kerr 2021-11-25 14:07:37 +08:00 committed by Jakub Kicinski
parent 342e5f9fc7
commit 7bd9890f3d
1 changed files with 1 additions and 0 deletions
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drivers/net/mctp/mctp-serial.c
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@ -479,6 +479,7 @@ static void mctp_serial_close(struct tty_struct *tty)
int idx = dev->idx;
unregister_netdev(dev->netdev);
cancel_work_sync(&dev->tx_work);
ida_free(&mctp_serial_ida, idx);
}