Index: sys/dev/gpio/gpioled.c
===================================================================
--- sys/dev/gpio/gpioled.c	(revision 221961)
+++ sys/dev/gpio/gpioled.c	(working copy)
@@ -37,7 +37,7 @@
 #include <sys/lock.h>
 #include <sys/malloc.h>
 #include <sys/module.h>
-#include <sys/mutex.h>
+#include <sys/sx.h>
 
 #include <dev/led/led.h>
 #include <sys/gpio.h>
@@ -48,18 +48,17 @@
  */
 #define	GPIOLED_PIN	0
 
-#define GPIOLED_LOCK(_sc)		mtx_lock(&(_sc)->sc_mtx)
-#define	GPIOLED_UNLOCK(_sc)		mtx_unlock(&(_sc)->sc_mtx)
+#define GPIOLED_LOCK(_sc)		sx_xlock(&(_sc)->sc_sx)
+#define	GPIOLED_UNLOCK(_sc)		sx_xunlock(&(_sc)->sc_sx)
 #define GPIOLED_LOCK_INIT(_sc) \
-	mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), \
-	    "gpioled", MTX_DEF)
-#define GPIOLED_LOCK_DESTROY(_sc)	mtx_destroy(&_sc->sc_mtx);
+	sx_init(&_sc->sc_sx, device_get_nameunit(_sc->sc_dev))
+#define GPIOLED_LOCK_DESTROY(_sc)	sx_destroy(&_sc->sc_sx);
 
 struct gpioled_softc 
 {
 	device_t	sc_dev;
 	device_t	sc_busdev;
-	struct mtx	sc_mtx;
+	struct sx	sc_sx;
 	struct cdev	*sc_leddev;
 };