hso modem detect fix patch against Alan Cox'es tty tree
Fixed incorrect check for the modem port, this prevents
crashes caused by issueing a tiocmget_submit_urb
on endpoints which don't exist for non modem devices.
Signed-off-by: Denis Joseph Barrow <D.Barow@option.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index d974d97..148af34 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2663,7 +2663,7 @@
serial->parent = hso_dev;
hso_dev->port_data.dev_serial = serial;
- if (port & HSO_PORT_MODEM) {
+ if ((port & HSO_PORT_MASK) == HSO_PORT_MODEM) {
num_urbs = 2;
serial->tiocmget = kzalloc(sizeof(struct hso_tiocmget),
GFP_KERNEL);