tty: use prepare/finish_wait
authorJiri Slaby <jirislaby@gmail.com>
Thu, 11 Jun 2009 13:33:37 +0000 (14:33 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 11 Jun 2009 15:51:07 +0000 (08:51 -0700)
Use prepare_to_wait and finish_wait instead of add_wait_queue and
remove_wait_queue.

This avoids us setting a task state.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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