[PATCH] sil24: add missing ata_pad_free()

sil24_port_stop() is missing call to ata_pad_free() thus leaking pad
buffer when a port is stopped.  This patch adds it.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

drivers/scsi/sata_sil24.c

@@ -687,6 +687,7 @@ static void sil24_port_stop(struct ata_port *ap)
 	struct sil24_port_priv *pp = ap->private_data;
 
 	sil24_cblk_free(pp, dev);
+	ata_pad_free(ap, dev);
 	kfree(pp);
 }