diff options
| author | Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> | 2006-06-12 22:46:20 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 15:04:18 -0700 |
| commit | db54a53d26322e978e66482208afabaab9cd0752 (patch) | |
| tree | 389920f93a45647fec5f90eb27e75213c27934f9 | |
| parent | 043ea18b2e145c4c9cb3c30757a65fe0f1678a35 (diff) | |
| download | lwn-db54a53d26322e978e66482208afabaab9cd0752.tar.gz lwn-db54a53d26322e978e66482208afabaab9cd0752.zip | |
[PATCH] usbserial: Fixes wrong return values.
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 <lcapitulino@mandriva.com.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | 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 92c213fa9317..a30135c7cfe6 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_struct *tty, struct file *file) 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_struct *tty, struct file *file, 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; } |