block: make blk_iopoll_prep_sched() follow normal 0/1 return convention
authorJens Axboe <jens.axboe@oracle.com>
Tue, 11 Aug 2009 06:31:14 +0000 (08:31 +0200)
committerJens Axboe <jens.axboe@oracle.com>
Fri, 11 Sep 2009 12:33:32 +0000 (14:33 +0200)
Return 0 if we successfully marked this iopoll structure as ours for
scheduling, instead of 1.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

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