block: Change the return type of blk_mq_map_queues() into void

Since blk_mq_map_queues() and the .map_queues() callbacks always return 0,
change their return type into void. Most callers ignore the returned value
anyway.

Cc: Christoph Hellwig <[email protected]>
Cc: Jason Wang <[email protected]>
Cc: Keith Busch <[email protected]>
Cc: Martin K. Petersen <[email protected]>
Cc: Doug Gilbert <[email protected]>
Cc: Michael S. Tsirkin <[email protected]>
Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: John Garry <[email protected]>
Acked-by: Md Haris Iqbal <[email protected]>
Reviewed-by: Sagi Grimberg <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[axboe: fold in fix from Bart]
Signed-off-by: Jens Axboe <[email protected]>

0 files changed, 0 insertions, 0 deletions