usb serial: more fixes and groundwork for tty changes
- If a termios change fails due to lack of memory we should copy the
old settings back over as the device has not changed
- Note various locking problems
- kl5kusb105 had various remaining tty flag handling problems
- Make safe_serial use tty_insert_flip_string not open coded loops
- set termios speed properly in usb_serial
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 5348e97..d077534 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -151,7 +151,7 @@
dbg("%s", __func__);
- for (i=0; i < serial->num_ports; ++i) {
+ for (i = 0; i < serial->num_ports; ++i) {
usb_kill_urb(serial->port[i]->interrupt_in_urb);
/* My special items, the standard routines free my urbs */
kfree(usb_get_serial_port_data(serial->port[i]));
@@ -209,7 +209,7 @@
if (count == 0) {
dbg("%s - write request of 0 bytes", __func__);
- return (0);
+ return 0;
}
spin_lock_bh(&port->lock);
@@ -223,12 +223,12 @@
spin_lock_irqsave(&priv->lock, flags);
- if( (count+priv->wrfilled)>sizeof(priv->wrbuf) ) {
+ if( (count+priv->wrfilled) > sizeof(priv->wrbuf) ) {
/* To much data for buffer. Reset buffer. */
- priv->wrfilled=0;
- spin_unlock_irqrestore(&priv->lock, flags);
+ priv->wrfilled = 0;
port->write_urb_busy = 0;
- return (0);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return 0;
}
/* Copy data */
@@ -269,8 +269,8 @@
if (result) {
err("%s - failed submitting write urb, error %d", __func__, result);
/* Throw away data. No better idea what to do with it. */
- priv->wrfilled=0;
- priv->wrsent=0;
+ priv->wrfilled = 0;
+ priv->wrsent = 0;
spin_unlock_irqrestore(&priv->lock, flags);
port->write_urb_busy = 0;
return 0;
@@ -282,8 +282,8 @@
if( priv->wrsent>=priv->wrfilled ) {
dbg("%s - buffer cleaned", __func__);
memset( priv->wrbuf, 0, sizeof(priv->wrbuf) );
- priv->wrfilled=0;
- priv->wrsent=0;
+ priv->wrfilled = 0;
+ priv->wrsent = 0;
}
}
@@ -294,6 +294,7 @@
static int cyberjack_write_room( struct usb_serial_port *port )
{
+ /* FIXME: .... */
return CYBERJACK_LOCAL_BUF_SIZE;
}
@@ -314,7 +315,7 @@
usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
/* React only to interrupts signaling a bulk_in transfer */
- if( (urb->actual_length==4) && (data[0]==0x01) ) {
+ if( (urb->actual_length == 4) && (data[0] == 0x01) ) {
short old_rdtodo;
/* This is a announcement of coming bulk_ins. */
@@ -450,8 +451,8 @@
if (result) {
err("%s - failed submitting write urb, error %d", __func__, result);
/* Throw away data. No better idea what to do with it. */
- priv->wrfilled=0;
- priv->wrsent=0;
+ priv->wrfilled = 0;
+ priv->wrsent = 0;
goto exit;
}
@@ -463,8 +464,8 @@
if( (priv->wrsent>=priv->wrfilled) || (priv->wrsent>=blksize) ) {
dbg("%s - buffer cleaned", __func__);
memset( priv->wrbuf, 0, sizeof(priv->wrbuf) );
- priv->wrfilled=0;
- priv->wrsent=0;
+ priv->wrfilled = 0;
+ priv->wrsent = 0;
}
}