Showing error 806

User: Jiri Slaby
Error type: Resource Leak
Error type description: The code omits to put the resource to the system for reuse
File location: drivers/usb/serial/ftdi_sio.c
Line in file: 1878
Project: Linux Kernel
Project version: 2.6.28
Tools: Stanse (1.2)
Entered: 2011-11-07 22:40:13 UTC

Source: 

1848        spin_unlock_irqrestore(&priv->rx_lock, flags);
1849
1850        ftdi_process_read(&priv->rx_work.work);
1851out:
1852        tty_kref_put(tty);
1853} /* ftdi_read_bulk_callback */
1854
1855
1856static void ftdi_process_read(struct work_struct *work)
1857{ /* ftdi_process_read */
1858        struct ftdi_private *priv =
1859                container_of(work, struct ftdi_private, rx_work.work);
1860        struct usb_serial_port *port = priv->port;
1861        struct urb *urb;
1862        struct tty_struct *tty;
1863        char error_flag;
1864        unsigned char *data;
1865
1866        int i;
1867        int result;
1868        int need_flip;
1869        int packet_offset;
1870        unsigned long flags;
1871
1872        dbg("%s - port %d", __func__, port->number);
1873
1874        if (port->port.count <= 0)
1875                return;
1876
1877        tty = tty_port_tty_get(&port->port);
1878        if (!tty) {
1879                dbg("%s - bad tty pointer - exiting", __func__);
1880                return;
1881        }
1882
1883        priv = usb_get_serial_port_data(port);
1884        if (!priv) {
1885                dbg("%s - bad port private data pointer - exiting", __func__);
1886                goto out;
1887        }
1888
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