diff options
Diffstat (limited to 'drivers/usb/serial/digi_acceleport.c')
| -rw-r--r-- | drivers/usb/serial/digi_acceleport.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 69f84f0ea6f..38ba4ea8b6b 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -635,8 +635,7 @@ static int digi_write_oob_command(struct usb_serial_port *port, spin_lock_irqsave(&oob_priv->dp_port_lock, flags); while (count > 0) { - while (oob_port->write_urb->status == -EINPROGRESS - || oob_priv->dp_write_urb_in_use) { + while (oob_priv->dp_write_urb_in_use) { cond_wait_interruptible_timeout_irqrestore( &oob_port->write_wait, DIGI_RETRY_TIMEOUT, &oob_priv->dp_port_lock, flags); @@ -699,9 +698,8 @@ static int digi_write_inb_command(struct usb_serial_port *port, spin_lock_irqsave(&priv->dp_port_lock, flags); while (count > 0 && ret == 0) { - while ((port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use) - && time_before(jiffies, timeout)) { + while (priv->dp_write_urb_in_use && + time_before(jiffies, timeout)) { cond_wait_interruptible_timeout_irqrestore( &port->write_wait, DIGI_RETRY_TIMEOUT, &priv->dp_port_lock, flags); @@ -779,8 +777,7 @@ static int digi_set_modem_signals(struct usb_serial_port *port, spin_lock_irqsave(&oob_priv->dp_port_lock, flags); spin_lock(&port_priv->dp_port_lock); - while (oob_port->write_urb->status == -EINPROGRESS || - oob_priv->dp_write_urb_in_use) { + while (oob_priv->dp_write_urb_in_use) { spin_unlock(&port_priv->dp_port_lock); cond_wait_interruptible_timeout_irqrestore( &oob_port->write_wait, DIGI_RETRY_TIMEOUT, @@ -1168,12 +1165,10 @@ static int digi_write(struct tty_struct *tty, struct usb_serial_port *port, /* be sure only one write proceeds at a time */ /* there are races on the port private buffer */ - /* and races to check write_urb->status */ spin_lock_irqsave(&priv->dp_port_lock, flags); /* wait for urb status clear to submit another urb */ - if (port->write_urb->status == -EINPROGRESS || - priv->dp_write_urb_in_use) { + if (priv->dp_write_urb_in_use) { /* buffer data if count is 1 (probably put_char) if possible */ if (count == 1 && priv->dp_out_buf_len < DIGI_OUT_BUF_SIZE) { priv->dp_out_buf[priv->dp_out_buf_len++] = *buf; @@ -1236,7 +1231,7 @@ static void digi_write_bulk_callback(struct urb *urb) int ret = 0; int status = urb->status; - dbg("digi_write_bulk_callback: TOP, urb->status=%d", status); + dbg("digi_write_bulk_callback: TOP, status=%d", status); /* port and serial sanity check */ if (port == NULL || (priv = usb_get_serial_port_data(port)) == NULL) { @@ -1266,8 +1261,7 @@ static void digi_write_bulk_callback(struct urb *urb) /* try to send any buffered data on this port, if it is open */ spin_lock(&priv->dp_port_lock); priv->dp_write_urb_in_use = 0; - if (port->port.count && port->write_urb->status != -EINPROGRESS - && priv->dp_out_buf_len > 0) { + if (port->port.count && priv->dp_out_buf_len > 0) { *((unsigned char *)(port->write_urb->transfer_buffer)) = (unsigned char)DIGI_CMD_SEND_DATA; *((unsigned char *)(port->write_urb->transfer_buffer) + 1) @@ -1305,8 +1299,7 @@ static int digi_write_room(struct tty_struct *tty) spin_lock_irqsave(&priv->dp_port_lock, flags); - if (port->write_urb->status == -EINPROGRESS || - priv->dp_write_urb_in_use) + if (priv->dp_write_urb_in_use) room = 0; else room = port->bulk_out_size - 2 - priv->dp_out_buf_len; @@ -1322,8 +1315,7 @@ static int digi_chars_in_buffer(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; struct digi_port *priv = usb_get_serial_port_data(port); - if (port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use) { + if (priv->dp_write_urb_in_use) { dbg("digi_chars_in_buffer: port=%d, chars=%d", priv->dp_port_num, port->bulk_out_size - 2); /* return(port->bulk_out_size - 2); */ @@ -1702,7 +1694,7 @@ static int digi_read_inb_callback(struct urb *urb) /* short/multiple packet check */ if (urb->actual_length != len + 2) { dev_err(&port->dev, "%s: INCOMPLETE OR MULTIPLE PACKET, " - "urb->status=%d, port=%d, opcode=%d, len=%d, " + "status=%d, port=%d, opcode=%d, len=%d, " "actual_length=%d, status=%d\n", __func__, status, priv->dp_port_num, opcode, len, urb->actual_length, port_status); |