From: Luiz Fernando N. Capitulino <[EMAIL PROTECTED]>
Some usbserial functions returns -EINVAL if the port doesn't exist or if
it's not opened. However, the right error code for such situations is
-ENODEV.
Signed-off-by: Luiz Fernando N. Capitulino <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/serial/usb-serial.c | 14 ++++++--------
1 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 92c213f..a30135c 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -305,7 +305,7 @@ exit:
static int serial_write_room (struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- int retval = -EINVAL;
+ int retval = -ENODEV;
if (!port)
goto exit;
@@ -327,7 +327,7 @@ exit:
static int serial_chars_in_buffer (struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- int retval = -EINVAL;
+ int retval = -ENODEV;
if (!port)
goto exit;
@@ -497,19 +497,18 @@ static int serial_tiocmget (struct tty_s
struct usb_serial_port *port = tty->driver_data;
if (!port)
- goto exit;
+ return -ENODEV;
dbg("%s - port %d", __FUNCTION__, port->number);
if (!port->open_count) {
dbg("%s - port not open", __FUNCTION__);
- goto exit;
+ return -ENODEV;
}
if (port->serial->type->tiocmget)
return port->serial->type->tiocmget(port, file);
-exit:
return -EINVAL;
}
@@ -519,19 +518,18 @@ static int serial_tiocmset (struct tty_s
struct usb_serial_port *port = tty->driver_data;
if (!port)
- goto exit;
+ return -ENODEV;
dbg("%s - port %d", __FUNCTION__, port->number);
if (!port->open_count) {
dbg("%s - port not open", __FUNCTION__);
- goto exit;
+ return -ENODEV;
}
if (port->serial->type->tiocmset)
return port->serial->type->tiocmset(port, file, set, clear);
-exit:
return -EINVAL;
}
--
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