elantech: Call psmouse_reset when elantech probe fails

elantech_init() calls elantech_set_absolute_mode which sets the driver in
an absolute mode. When after this the elantech_init fails, it is best
to turn the ps/2 mouse emulation mode back on by calling psmouse_reset()
so that it can work as a regular mouse.

Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>

drivers/input/mouse/elantech.c

@@ -1620,6 +1620,7 @@ int elantech_init(struct psmouse *psmouse)
 	sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj,
 			   &elantech_attr_group);
  init_fail:
+	psmouse_reset(psmouse);
 	kfree(etd);
 	return error;
 }