diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 52dc2d8b8f22..8e37be19bbf5 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -738,7 +738,6 @@ static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev)
  *	do_pata_set_dmamode - Initialize host controller PATA PIO timings
  *	@ap: Port whose timings we are configuring
  *	@adev: Drive in question
- *	@udma: udma mode, 0 - 6
  *	@isich: set if the chip is an ICH device
  *
  *	Set UDMA mode for device, in host controller PCI config space.
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 2ff633c119e2..e398df12fd18 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1602,7 +1602,6 @@ unsigned long ata_id_xfermask(const u16 *id)
 /**
  *	ata_pio_queue_task - Queue port_task
  *	@ap: The ata_port to queue port_task for
- *	@fn: workqueue function to be scheduled
  *	@data: data for @fn to use
  *	@delay: delay time in msecs for workqueue function
  *
@@ -4648,7 +4647,6 @@ static void ata_verify_xfer(struct ata_queued_cmd *qc)
 /**
  *	ata_qc_complete - Complete an active ATA command
  *	@qc: Command to complete
- *	@err_mask: ATA Status register contents
  *
  *	Indicate to the mid and upper layers that an ATA
  *	command has completed, with either an ok or not-ok status.