[SCSI] iscsi: fix ahs len

From: tomof@acm.org

Fix AHS Length
Signed-off-by: Alex Aizman <itn780@yahoo.com>
Signed-off-by: Dmitry Yusupov <dmitry_yus@yahoo.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/iscsi_tcp.c

@@ -557,7 +557,7 @@ iscsi_hdr_recv(struct iscsi_conn *conn)
 	conn->data_copied = 0;
 
 	/* read AHS */
-	conn->in.ahslen = hdr->hlength*(4*sizeof(__u16));
+	conn->in.ahslen = hdr->hlength * 4;
 	conn->in.offset += conn->in.ahslen;
 	conn->in.copy -= conn->in.ahslen;
 	if (conn->in.copy < 0) {