diff --git a/sys/dev/iicbus/iic.c b/sys/dev/iicbus/iic.c
index 9dd1431dbc04..28339fa510ed 100644
--- a/sys/dev/iicbus/iic.c
+++ b/sys/dev/iicbus/iic.c
@@ -122,15 +122,9 @@ iic_attach(device_t dev)
 {
 	struct iic_softc *sc = (struct iic_softc *)device_get_softc(dev);
 
-	if (!sc)
-		return (ENOMEM);
-
-	bzero(sc, sizeof(struct iic_softc));
-
 	sc->sc_devnode = make_dev(&iic_cdevsw, device_get_unit(dev),
 			UID_ROOT, GID_WHEEL,
 			0600, "iic%d", device_get_unit(dev));
-
 	return (0);
 }
 
@@ -146,7 +140,7 @@ iic_detach(device_t dev)
 }
 
 static int
-iicopen (struct cdev *dev, int flags, int fmt, struct thread *td)
+iicopen(struct cdev *dev, int flags, int fmt, struct thread *td)
 {
 	struct iic_softc *sc = IIC_SOFTC(minor(dev));
 
diff --git a/sys/dev/iicbus/iicbb.c b/sys/dev/iicbus/iicbb.c
index 53ecdceb947f..554f4357380a 100644
--- a/sys/dev/iicbus/iicbb.c
+++ b/sys/dev/iicbus/iicbb.c
@@ -115,13 +115,9 @@ static int iicbb_attach(device_t dev)
 {
 	struct iicbb_softc *sc = (struct iicbb_softc *)device_get_softc(dev);
 
-	bzero(sc, sizeof(struct iicbb_softc));
-
 	sc->iicbus = device_add_child(dev, "iicbus", -1);
-
 	if (!sc->iicbus)
 		return (ENXIO);
-
 	bus_generic_attach(dev);
 
 	return (0);
diff --git a/sys/dev/iicbus/iicsmb.c b/sys/dev/iicbus/iicsmb.c
index 966063f2a13b..c2d45d4513e0 100644
--- a/sys/dev/iicbus/iicsmb.c
+++ b/sys/dev/iicbus/iicsmb.c
@@ -153,8 +153,6 @@ iicsmb_attach(device_t dev)
 {
 	struct iicsmb_softc *sc = (struct iicsmb_softc *)device_get_softc(dev);
 
-	bzero(sc, sizeof(*sc));
-
 	sc->smbus = device_add_child(dev, "smbus", -1);
 
 	/* probe and attach the smbus */