block: Fix the enum blk_eh_timer_return documentation

The documentation of the blk_eh_timer_return enumeration values does not
reflect correctly how e.g. the SCSI core uses these values. Fix the
documentation.

Cc: Christoph Hellwig <[e-mail]>
Cc: Ming Lei <[e-mail]>
Cc: Hannes Reinecke <[e-mail]>
Cc: Damien Le Moal <[e-mail]>
Cc: Johannes Thumshirn <[e-mail]>
Fixes: 88b0cfad2888 ("block: document the blk_eh_timer_return values")
Signed-off-by: Bart Van Assche <[e-mail]>
Reviewed-by: Johannes Thumshirn <[e-mail]>
Reviewed-by: Damien Le Moal <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jens Axboe <[e-mail]>

include/linux/blk-mq.h

···
 	rq_list_add(dst, rq);
 }
 
+/**
+ * enum blk_eh_timer_return - How the timeout handler should proceed
+ * @BLK_EH_DONE: The block driver completed the command or will complete it at
+ *	a later time.
+ * @BLK_EH_RESET_TIMER: Reset the request timer and continue waiting for the
+ *	request to complete.
+ */
 enum blk_eh_timer_return {
-	BLK_EH_DONE,		/* drivers has completed the command */
-	BLK_EH_RESET_TIMER,	/* reset timer and try again */
+	BLK_EH_DONE,
+	BLK_EH_RESET_TIMER,
 };
 
 #define BLK_TAG_ALLOC_FIFO 0 /* allocate starting from 0 */