dm: convert wait loops to use autoremove_wake_function()

Use autoremove_wake_function() instead of default_wake_function()
to make the dm wait loops more similar to other wait loops in the
kernel.  This patch does not change any functionality.

Signed-off-by: Bart Van Assche <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
2 files changed