GUS Library
Replace deprecated interruptible_sleep_on_timeout() with
wait_event_timeout(). Code is not identical, as the current sleeping
system is 1 jiffy at a time checking atomic_read()'s return every
iteration. Patch is compile-tested.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>