[PATCH] ata-piix: fixes kerneldoc error

Fixes an error in kerneldoc of ata_piix.c.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/ata_piix.c

@@ -851,7 +851,7 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
  *	@ap: Port whose timings we are configuring
  *	@adev: Drive in question
  *	@udma: udma mode, 0 - 6
- *	@is_ich: set if the chip is an ICH device
+ *	@isich: set if the chip is an ICH device
  *
  *	Set UDMA mode for device, in host controller PCI config space.
  *