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    Subject[PATCH 2/2] [USB] [SERIAL]: fixed to skip NULL port entry in struct usb_serial_port.
    From
    Hi,

    This patch fixes to skip serial->port[i] if it is set NULL.
    ---
    include/linux/usb/serial.h | 5 ++++-
    1 files changed, 4 insertions(+), 1 deletions(-)

    diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
    index 32acbae..85ed5ef 100644
    --- a/include/linux/usb/serial.h
    +++ b/include/linux/usb/serial.h
    @@ -99,7 +99,10 @@ struct usb_serial_port {
    /* get and set the port private data pointer helper functions */
    static inline void *usb_get_serial_port_data (struct usb_serial_port *port)
    {
    - return dev_get_drvdata(&port->dev);
    + if (port)
    + return dev_get_drvdata(&port->dev);
    + else
    + return NULL;
    }

    static inline void usb_set_serial_port_data (struct usb_serial_port *port, void *data)
    --
    1.4.4
    --
    Noriaki TAKAMIYA
    -
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