[Bluetooth] Add locking for bt_proto array manipulation

[pandora-kernel.git] / net / bluetooth / rfcomm / tty.c

diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index bd8d671..b8e3a5f 100644 (file)
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -38,6 +38,7 @@
 #include <linux/skbuff.h>
 
 #include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/rfcomm.h>
 
 #ifndef CONFIG_BT_RFCOMM_DEBUG
@@ -161,6 +162,22 @@ static inline struct rfcomm_dev *rfcomm_dev_get(int id)
        return dev;
 }
 
+static struct device *rfcomm_get_device(struct rfcomm_dev *dev)
+{
+       struct hci_dev *hdev;
+       struct hci_conn *conn;
+
+       hdev = hci_get_route(&dev->dst, &dev->src);
+       if (!hdev)
+               return NULL;
+
+       conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &dev->dst);
+
+       hci_dev_put(hdev);
+
+       return conn ? &conn->dev : NULL;
+}
+
 static int rfcomm_dev_add(struct rfcomm_dev_req *req, struct rfcomm_dlc *dlc)
 {
        struct rfcomm_dev *dev;
@@ -244,7 +261,7 @@ out:
                return err;
        }
 
-       tty_register_device(rfcomm_tty_driver, dev->id, NULL);
+       tty_register_device(rfcomm_tty_driver, dev->id, rfcomm_get_device(dev));
 
        return dev->id;
 }
@@ -748,6 +765,9 @@ static void rfcomm_tty_set_termios(struct tty_struct *tty, struct termios *old)
 
        BT_DBG("tty %p termios %p", tty, old);
 
+       if (!dev)
+               return;
+
        /* Handle turning off CRTSCTS */
        if ((old->c_cflag & CRTSCTS) && !(new->c_cflag & CRTSCTS)) 
                BT_DBG("Turning off CRTSCTS unsupported");
@@ -992,7 +1012,7 @@ static int rfcomm_tty_tiocmset(struct tty_struct *tty, struct file *filp, unsign
 
 /* ---- TTY structure ---- */
 
-static struct tty_operations rfcomm_ops = {
+static const struct tty_operations rfcomm_ops = {
        .open                   = rfcomm_tty_open,
        .close                  = rfcomm_tty_close,
        .write                  = rfcomm_tty_write,