aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/usb/core/usb.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 6ee2b5359a8..56a3520863a 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -192,20 +192,23 @@ void usb_driver_release_interface(struct usb_driver *driver,
iface->condition = USB_INTERFACE_UNBOUND;
mark_quiesced(iface);
}
+struct find_interface_arg {
+ int minor;
+ struct usb_interface *interface;
+};
static int __find_interface(struct device * dev, void * data)
{
- struct usb_interface ** ret = (struct usb_interface **)data;
- struct usb_interface * intf = *ret;
- int *minor = (int *)data;
+ struct find_interface_arg *arg = data;
+ struct usb_interface *intf;
/* can't look at usb devices, only interfaces */
if (dev->driver == &usb_generic_driver)
return 0;
intf = to_usb_interface(dev);
- if (intf->minor != -1 && intf->minor == *minor) {
- *ret = intf;
+ if (intf->minor != -1 && intf->minor == arg->minor) {
+ arg->interface = intf;
return 1;
}
return 0;
@@ -222,12 +225,12 @@ static int __find_interface(struct device * dev, void * data)
*/
struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor)
{
- struct usb_interface *intf = (struct usb_interface *)(long)minor;
- int ret;
-
- ret = driver_for_each_device(&drv->driver, NULL, &intf, __find_interface);
+ struct find_interface_arg argb;
- return ret ? intf : NULL;
+ argb.minor = minor;
+ argb.interface = NULL;
+ driver_for_each_device(&drv->driver, NULL, &argb, __find_interface);
+ return argb.interface;
}
#ifdef CONFIG_HOTPLUG