diff --git a/block/blk-core.c b/block/blk-core.c
index 91532f2..8517264 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1018,8 +1018,9 @@
 }
 
 /**
- * part_round_stats()	- Round off the performance stats on a struct
- * disk_stats.
+ * part_round_stats() - Round off the performance stats on a struct disk_stats.
+ * @cpu: cpu number for stats access
+ * @part: target partition
  *
  * The average IO queue length and utilisation statistics are maintained
  * by observing the current state of the queue length and the amount of
diff --git a/block/genhd.c b/block/genhd.c
index b8defae..646e1d2 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -534,7 +534,7 @@
 /**
  * get_gendisk - get partitioning information for a given device
  * @devt: device to get partitioning information for
- * @part: returned partition index
+ * @partno: returned partition index
  *
  * This function gets the structure containing partitioning
  * information for the given device @devt.
diff --git a/fs/block_dev.c b/fs/block_dev.c
index d84f0469..218408e 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1262,7 +1262,7 @@
 
 /**
  * lookup_bdev  - lookup a struct block_device by name
- * @pathname:	special file representing the block device
+ * @path:	special file representing the block device
  *
  * Get a reference to the blockdevice at @pathname in the current
  * namespace if possible and return it.  Return ERR_PTR(error)