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USB: fix __must_check warnings in drivers/usb/serial/

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Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2006-08-28 11:43:25 -07:00
parent 1ee95216c0
commit 13f4db9e1b
2 changed files with 23 additions and 12 deletions
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30
drivers/usb/serial/ftdi_sio.c
View File

@ -1101,25 +1101,29 @@ static ssize_t store_event_char(struct device *dev, struct device_attribute *att
static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, store_latency_timer);
static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
static void create_sysfs_attrs(struct usb_serial *serial)
{
static int create_sysfs_attrs(struct usb_serial *serial)
{
struct ftdi_private *priv;
struct usb_device *udev;
int retval = 0;
dbg("%s",__FUNCTION__);
priv = usb_get_serial_port_data(serial->port[0]);
udev = serial->dev;
/* XXX I've no idea if the original SIO supports the event_char
* sysfs parameter, so I'm playing it safe. */
if (priv->chip_type != SIO) {
dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
device_create_file(&udev->dev, &dev_attr_event_char);
if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) {
device_create_file(&udev->dev, &dev_attr_latency_timer);
retval = device_create_file(&udev->dev, &dev_attr_event_char);
if ((!retval) &&
(priv->chip_type == FT232BM || priv->chip_type == FT2232C)) {
retval = device_create_file(&udev->dev,
&dev_attr_latency_timer);
}
}
return retval;
}
static void remove_sysfs_attrs(struct usb_serial *serial)
@ -1162,7 +1166,8 @@ static int ftdi_sio_attach (struct usb_serial *serial)
struct usb_serial_port *port = serial->port[0];
struct ftdi_private *priv;
struct ftdi_sio_quirk *quirk;
int retval;
dbg("%s",__FUNCTION__);
priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
@ -1203,15 +1208,18 @@ static int ftdi_sio_attach (struct usb_serial *serial)
usb_set_serial_port_data(serial->port[0], priv);
ftdi_determine_type (serial->port[0]);
create_sysfs_attrs(serial);
retval = create_sysfs_attrs(serial);
if (retval)
dev_err(&serial->dev->dev, "Error creating sysfs files, "
"continuing\n");
/* Check for device requiring special set up. */
quirk = (struct ftdi_sio_quirk *)usb_get_serial_data(serial);
if (quirk && quirk->setup) {
quirk->setup(serial);
}
return (0);
return 0;
} /* ftdi_sio_attach */

5
drivers/usb/serial/usb-serial.c
View File

@ -932,7 +932,10 @@ int usb_serial_probe(struct usb_interface *interface,
snprintf (&port->dev.bus_id[0], sizeof(port->dev.bus_id), "ttyUSB%d", port->number);
dbg ("%s - registering %s", __FUNCTION__, port->dev.bus_id);
device_register (&port->dev);
retval = device_register(&port->dev);
if (retval)
dev_err(&port->dev, "Error registering port device, "
"continuing\n");
}
usb_serial_console_init (debug, minor);