1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 37c81c08faad..b3014fda645c 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -77,6 +77,7 @@ static struct usb_device_id id_table [] = {
         { USB_DEVICE(CA_42_CA42_VENDOR_ID, CA_42_CA42_PRODUCT_ID) },
         { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) },
         { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) },
+        { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) },
         { }                                     /* Terminating entry */
 };
 
@@ -218,10 +219,9 @@ static int pl2303_startup (struct usb_serial *serial)
         dbg("device type: %d", type);
 
         for (i = 0; i < serial->num_ports; ++i) {
-                priv = kmalloc (sizeof (struct pl2303_private), GFP_KERNEL);
+                priv = kzalloc(sizeof(struct pl2303_private), GFP_KERNEL);
                 if (!priv)
                         goto cleanup;
-                memset (priv, 0x00, sizeof (struct pl2303_private));
                 spin_lock_init(&priv->lock);
                 priv->buf = pl2303_buf_alloc(PL2303_BUF_SIZE);
                 if (priv->buf == NULL) {
@@ -383,12 +383,11 @@ static void pl2303_set_termios (struct usb_serial_port *port, struct termios *ol
                 }
         }
 
-        buf = kmalloc (7, GFP_KERNEL);
+        buf = kzalloc (7, GFP_KERNEL);
         if (!buf) {
                 dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__);
                 return;
         }
-        memset (buf, 0x00, 0x07);
         
         i = usb_control_msg (serial->dev, usb_rcvctrlpipe (serial->dev, 0),
                              GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE,
@@ -828,6 +827,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port,
         spin_lock_irqsave(&priv->lock, flags);
         priv->line_status = data[status_idx];
         spin_unlock_irqrestore(&priv->lock, flags);
+        wake_up_interruptible (&priv->delta_msr_wait);
 
 exit:
         return;