block: Fix the blk_mq_destroy_queue() documentation

Commit 2b3f056 moved a blk_put_queue() call from
blk_mq_destroy_queue() into its callers. Reflect this change in the
documentation block above blk_mq_destroy_queue().

Cc: Christoph Hellwig <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: Chaitanya Kulkarni <[email protected]>
Cc: Keith Busch <[email protected]>
Fixes: 2b3f056 ("blk-mq: move the call to blk_put_queue out of blk_mq_destroy_queue")
Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>

Author: bvanassche

block/blk-mq.c

@@ -4069,8 +4069,9 @@ EXPORT_SYMBOL(blk_mq_init_queue);
  * blk_mq_destroy_queue - shutdown a request queue
  * @q: request queue to shutdown
  *
- * This shuts down a request queue allocated by blk_mq_init_queue() and drops
- * the initial reference.  All future requests will failed with -ENODEV.
+ * This shuts down a request queue allocated by blk_mq_init_queue(). All future
+ * requests will be failed with -ENODEV. The caller is responsible for dropping
+ * the reference from blk_mq_init_queue() by calling blk_put_queue().
  *
  * Context: can sleep
  */