tty: Fix ldisc halt sequence on hangup

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Flip buffer work cannot be cancelled until all outstanding ldisc
references have been released. Convert the ldisc ref wait into
a full ldisc halt with buffer work cancellation.

Note that the legacy mutex is not held while cancelling.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Peter Hurley 2013-03-11 16:44:26 -04:00 • committed by Greg Kroah-Hartman

parent 2276ad9765

commit 76bc35e78f

1 changed files with 19 additions and 20 deletions

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39

drivers/tty/tty_ldisc.c

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