block:remove some spare spaces in genhd.c

Remove the end-of-line spaces in genhd.c.
Signed-off-by: NWanlong Gao <wanlong.gao@gmail.com>
Signed-off-by: NJens Axboe <jaxboe@fusionio.com>

block/genhd.c

@@ -602,7 +602,7 @@ void add_disk(struct gendisk *disk)
 	disk->major = MAJOR(devt);
 	disk->first_minor = MINOR(devt);
 
-	/* Register BDI before referencing it from bdev */ 
+	/* Register BDI before referencing it from bdev */
 	bdi = &disk->queue->backing_dev_info;
 	bdi_register_dev(bdi, disk_devt(disk));
 
@@ -1148,7 +1148,7 @@ static int diskstats_show(struct seq_file *seqf, void *v)
 				"wsect wuse running use aveq"
 				"\n\n");
 	*/
- 
+
 	disk_part_iter_init(&piter, gp, DISK_PITER_INCL_EMPTY_PART0);
 	while ((hd = disk_part_iter_next(&piter))) {
 		cpu = part_stat_lock();
@@ -1172,7 +1172,7 @@ static int diskstats_show(struct seq_file *seqf, void *v)
 			);
 	}
 	disk_part_iter_exit(&piter);
- 
+
 	return 0;
 }