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path: root/drivers/usb/serial/keyspan.c
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Diffstat (limited to 'drivers/usb/serial/keyspan.c')
-rw-r--r--drivers/usb/serial/keyspan.c96
1 files changed, 42 insertions, 54 deletions
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index b011478d2e5f..eb30d7b01f36 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -712,45 +712,45 @@ static void usa49wg_indat_callback(struct urb *urb)
i = 0;
len = 0;
- if (urb->actual_length) {
- while (i < urb->actual_length) {
+ while (i < urb->actual_length) {
- /* Check port number from message*/
- if (data[i] >= serial->num_ports) {
- dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
- __func__, data[i]);
- return;
- }
- port = serial->port[data[i++]];
- len = data[i++];
+ /* Check port number from message */
+ if (data[i] >= serial->num_ports) {
+ dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
+ __func__, data[i]);
+ return;
+ }
+ port = serial->port[data[i++]];
+ len = data[i++];
- /* 0x80 bit is error flag */
- if ((data[i] & 0x80) == 0) {
- /* no error on any byte */
- i++;
- for (x = 1; x < len ; ++x)
- tty_insert_flip_char(&port->port,
- data[i++], 0);
- } else {
- /*
- * some bytes had errors, every byte has status
- */
- for (x = 0; x + 1 < len; x += 2) {
- int stat = data[i], flag = 0;
- if (stat & RXERROR_OVERRUN)
- flag |= TTY_OVERRUN;
- if (stat & RXERROR_FRAMING)
- flag |= TTY_FRAME;
- if (stat & RXERROR_PARITY)
- flag |= TTY_PARITY;
- /* XXX should handle break (0x10) */
- tty_insert_flip_char(&port->port,
- data[i+1], flag);
- i += 2;
- }
+ /* 0x80 bit is error flag */
+ if ((data[i] & 0x80) == 0) {
+ /* no error on any byte */
+ i++;
+ for (x = 1; x < len && i < urb->actual_length; ++x)
+ tty_insert_flip_char(&port->port,
+ data[i++], 0);
+ } else {
+ /*
+ * some bytes had errors, every byte has status
+ */
+ for (x = 0; x + 1 < len &&
+ i + 1 < urb->actual_length; x += 2) {
+ int stat = data[i], flag = 0;
+
+ if (stat & RXERROR_OVERRUN)
+ flag |= TTY_OVERRUN;
+ if (stat & RXERROR_FRAMING)
+ flag |= TTY_FRAME;
+ if (stat & RXERROR_PARITY)
+ flag |= TTY_PARITY;
+ /* XXX should handle break (0x10) */
+ tty_insert_flip_char(&port->port, data[i+1],
+ flag);
+ i += 2;
}
- tty_flip_buffer_push(&port->port);
}
+ tty_flip_buffer_push(&port->port);
}
/* Resubmit urb so we continue receiving */
@@ -1092,7 +1092,6 @@ static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
static void keyspan_close(struct usb_serial_port *port)
{
int i;
- struct usb_serial *serial = port->serial;
struct keyspan_port_private *p_priv;
p_priv = usb_get_serial_port_data(port);
@@ -1100,28 +1099,17 @@ static void keyspan_close(struct usb_serial_port *port)
p_priv->rts_state = 0;
p_priv->dtr_state = 0;
- if (serial->dev) {
- keyspan_send_setup(port, 2);
- /* pilot-xfer seems to work best with this delay */
- mdelay(100);
- /* keyspan_set_termios(port, NULL); */
- }
-
- /*while (p_priv->outcont_urb->status == -EINPROGRESS) {
- dev_dbg(&port->dev, "%s - urb in progress\n", __func__);
- }*/
+ keyspan_send_setup(port, 2);
+ /* pilot-xfer seems to work best with this delay */
+ mdelay(100);
p_priv->out_flip = 0;
p_priv->in_flip = 0;
- if (serial->dev) {
- /* Stop reading/writing urbs */
- stop_urb(p_priv->inack_urb);
- /* stop_urb(p_priv->outcont_urb); */
- for (i = 0; i < 2; i++) {
- stop_urb(p_priv->in_urbs[i]);
- stop_urb(p_priv->out_urbs[i]);
- }
+ stop_urb(p_priv->inack_urb);
+ for (i = 0; i < 2; i++) {
+ stop_urb(p_priv->in_urbs[i]);
+ stop_urb(p_priv->out_urbs[i]);
}
}