*** src/wl/sys/wl_linux.c~	2010-12-15 10:58:07.000000000 +0900
--- src/wl/sys/wl_linux.c	2011-02-06 20:53:15.056000007 +0900
***************
*** 482,488 ****
--- 482,492 ----
  #ifdef WL_ALL_PASSIVE
  		spin_lock_init(&wl->txq_lock);
  #endif 
+ #ifndef init_MUTEX
+   	        sema_init(&wl->sem,1);
+ #else
  		init_MUTEX(&wl->sem);
+ #endif
  	}
  
  	if (!(wl->wlc = wlc_attach((void *) wl, vendor, device, unit, wl->piomode,