On Wed, 12 Apr 2006, Greg KH wrote:
> So, care to break the patches out into different parts so I can apply
> them?
Ok, below is #1. #2, 3, and 4 will follow.
Tnanks
Guennadi
---
Guennadi Liakhovetski
Prevent sending further output to a USB-serial console after the dongle is
disconnected.
Signed-off-by: Guennadi Liakhovetski <[EMAIL PROTECTED]>
diff -u a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
--- a/drivers/usb/serial/console.c 13 Jan 2005 21:09:08 -0000
+++ b/drivers/usb/serial/console.c 11 Apr 2006 18:03:29 -0000
@@ -202,7 +202,7 @@
struct usb_serial *serial;
int retval = -ENODEV;
- if (!port)
+ if (!port || port->serial->dev->state == USB_STATE_NOTATTACHED)
return;
serial = port->serial;
@@ -234,6 +234,14 @@
.index = -1,
};
+void usb_serial_console_disconnect(struct usb_serial *serial)
+{
+ if (serial && serial->port && serial->port[0] && serial->port[0] ==
usbcons_info.port) {
+ usbcons_info.port->open_count--;
+ usbcons_info.port = NULL;
+ }
+}
+
void usb_serial_console_init (int serial_debug, int minor)
{
debug = serial_debug;
diff -u a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
--- a/drivers/usb/serial/usb-serial.c 30 Mar 2006 19:18:07 -0000
+++ b/drivers/usb/serial/usb-serial.c 11 Apr 2006 18:02:12 -0000
@@ -271,7 +271,7 @@
struct usb_serial_port *port = tty->driver_data;
int retval = -EINVAL;
- if (!port)
+ if (!port || port->serial->dev->state == USB_STATE_NOTATTACHED)
goto exit;
dbg("%s - port %d, %d byte(s)", __FUNCTION__, port->number, count);
@@ -982,6 +982,7 @@
struct device *dev = &interface->dev;
struct usb_serial_port *port;
+ usb_serial_console_disconnect(serial);
dbg ("%s", __FUNCTION__);
usb_set_intfdata (interface, NULL);
diff -u a/drivers/usb/serial/usb-serial.h b/drivers/usb/serial/usb-serial.h
--- a/drivers/usb/serial/usb-serial.h 30 Mar 2006 19:18:07 -0000
+++ b/drivers/usb/serial/usb-serial.h 11 Apr 2006 18:02:12 -0000
@@ -248,9 +248,11 @@
#ifdef CONFIG_USB_SERIAL_CONSOLE
extern void usb_serial_console_init (int debug, int minor);
extern void usb_serial_console_exit (void);
+extern void usb_serial_console_disconnect(struct usb_serial *serial);
#else
static inline void usb_serial_console_init (int debug, int minor) { }
static inline void usb_serial_console_exit (void) { }
+static inline void usb_serial_console_disconnect(struct usb_serial *serial) {}
#endif
/* Functions needed by other parts of the usbserial core */
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