[ums][patch] mouse wheel doesn't work on -STABLE after recent update

[Oleg Sidorkin]

Hello,
my IntelliMouse Explorer 4.0 wheel stops working after recent update. Rolling 
back ums.c to the previous (1.96.2.1) version fixes the problem. 
I think, there is a typo in the latest version of ums.c: HUG_Z is verified  
twice instead of HUG_TWHEEL in previous version. The following patch seems 
working for me:

diff -u ums.c.orig ums.c
--- ums.c.orig  2008-04-15 11:09:02.000000000 +0400
+++ ums.c       2008-04-22 09:53:12.000000000 +0400
@@ -313,7 +313,7 @@
                        }
                }
        } else if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP,
-                                                    HUG_Z),
+                                                    HUG_TWHEEL),
                               hid_input, &sc->sc_loc_z, &flags)) {
                if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
                        printf("\n%s: Z report 0x%04x not supported\n",