From 8676d9fe798e1fc557c6cfe646773f2c808adf70 Mon Sep 17 00:00:00 2001
From: Jan Dumon <j.dumon@option.com>
Date: Tue, 5 Jan 2010 04:52:42 +0000
Subject: [PATCH] --- yaml --- r: 179099 b: refs/heads/master c:
 0e0367e980b55629917f3dd5f5f0ccbf3d0dab62 h: refs/heads/master i:   179097:
 4b0963f5b6de13aac4673d3cd15e2c6e8c331c4b   179095:
 bd5711dd283953de28fc6187827c36e4d9107880 v: v3

---
 [refs]                      | 2 +-
 trunk/drivers/net/usb/hso.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 2b745198e41b..658284bacbc1 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 68a351c501ad22077a969df157cd13367cb43a40
+refs/heads/master: 0e0367e980b55629917f3dd5f5f0ccbf3d0dab62
diff --git a/trunk/drivers/net/usb/hso.c b/trunk/drivers/net/usb/hso.c
index 7482d0d5e278..67eb8390cf07 100644
--- a/trunk/drivers/net/usb/hso.c
+++ b/trunk/drivers/net/usb/hso.c
@@ -1723,6 +1723,10 @@ static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file,
 		D1("no tty structures");
 		return -EINVAL;
 	}
+
+	if ((serial->parent->port_spec & HSO_PORT_MASK) != HSO_PORT_MODEM)
+		return -EINVAL;
+
 	if_num = serial->parent->interface->altsetting->desc.bInterfaceNumber;
 
 	spin_lock_irqsave(&serial->serial_lock, flags);