[PATCH] USB: fix usb_find_interface for ppc64

Fix usb_find_interface. You cannot case pointers to int and long on
a big-endian 64-bitter without consequences.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 13 insertions, 10 deletions

diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 6ee2b5359a83..56a3520863a9 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