staging/serqt_usb2: Refactor qt_status_change_check() in serqt_usb2.c
Modify qt_status_change_check() and delete qt_status_change(). Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com> Acked-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -291,33 +291,6 @@ static void qt_interrupt_callback(struct urb *urb)
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/* FIXME */
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}
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static int qt_status_change(unsigned int limit,
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unsigned char *data,
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int i,
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struct quatech_port *qt_port,
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struct usb_serial_port *port)
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{
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void (*fn)(struct quatech_port *, unsigned char);
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if (0x00 == data[i + 2]) {
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dev_dbg(&port->dev, "Line status status.\n");
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fn = ProcessLineStatus;
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} else {
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dev_dbg(&port->dev, "Modem status status.\n");
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fn = ProcessModemStatus;
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}
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if (i > limit) {
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dev_dbg(&port->dev,
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"Illegal escape seuences in received data\n");
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return 0;
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}
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(*fn)(qt_port, data[i + 3]);
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return 1;
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}
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static void qt_status_change_check(struct tty_struct *tty,
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struct urb *urb,
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struct quatech_port *qt_port,
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@ -334,11 +307,29 @@ static void qt_status_change_check(struct tty_struct *tty,
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flag = 0;
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switch (data[i + 2]) {
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case 0x00:
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if (i > (RxCount - 4)) {
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dev_dbg(&port->dev,
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"Illegal escape seuences in received data\n");
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break;
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}
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ProcessLineStatus(qt_port, data[i + 3]);
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i += 3;
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flag = 1;
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break;
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case 0x01:
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flag = qt_status_change((RxCount - 4), data, i,
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qt_port, port);
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if (flag == 1)
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i += 3;
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if (i > (RxCount - 4)) {
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dev_dbg(&port->dev,
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"Illegal escape seuences in received data\n");
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break;
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}
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ProcessModemStatus(qt_port, data[i + 3]);
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i += 3;
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flag = 1;
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break;
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case 0xff:
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