libata: fix libata-scsi kernel-doc notation

Fix libata-scsi kernel-doc notation:

Warning(linux-2.6.25-git15//drivers/ata/libata-scsi.c:1659): No description found for parameter 'cmd'
Warning(linux-2.6.25-git15//drivers/ata/libata-scsi.c:1971): No description found for parameter 'buf'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index aeb6e01..2e6e162 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1637,6 +1637,7 @@
 
 /**
  *	ata_scsi_rbuf_get - Map response buffer.
+ *	@cmd: SCSI command containing buffer to be mapped.
  *	@flags: unsigned long variable to store irq enable status
  *	@copy_in: copy in from user buffer
  *
@@ -1954,7 +1955,7 @@
 
 /**
  *	ata_msense_rw_recovery - Simulate MODE SENSE r/w error recovery page
- *	@bufp: output buffer
+ *	@buf: output buffer
  *
  *	Generate a generic MODE SENSE r/w error recovery page.
  *