libata: doc updates
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 416ba67..7a4adc4 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -947,7 +947,7 @@
 }
 
 /**
- *	ata_scsiop_noop -
+ *	ata_scsiop_noop - Command handler that simply returns success.
  *	@args: device IDENTIFY data / SCSI command of interest.
  *	@rbuf: Response buffer, to which simulated SCSI cmd output is sent.
  *	@buflen: Response buffer length.