diff --git a/sys/dev/ppbus/if_plip.c b/sys/dev/ppbus/if_plip.c
index 9805e0b05079..a684656d00f1 100644
--- a/sys/dev/ppbus/if_plip.c
+++ b/sys/dev/ppbus/if_plip.c
@@ -201,7 +201,6 @@ lp_probe(device_t dev)
 	uintptr_t irq;
 
 	lp = DEVTOSOFTC(dev);
-	bzero(lp, sizeof(struct lp_data));
 
 	/* retrieve the ppbus irq */
 	BUS_READ_IVAR(ppbus, dev, PPBUS_IVAR_IRQ, &irq);
diff --git a/sys/dev/ppbus/lpt.c b/sys/dev/ppbus/lpt.c
index f3f2c1d9e8a8..3b978d7a9873 100644
--- a/sys/dev/ppbus/lpt.c
+++ b/sys/dev/ppbus/lpt.c
@@ -356,7 +356,6 @@ lpt_probe(device_t dev)
 	struct lpt_data *sc;
 	
 	sc = DEVTOSOFTC(dev);
-	bzero(sc, sizeof(struct lpt_data));
 
 	/*
 	 * Now, try to detect the printer.
diff --git a/sys/dev/ppbus/pcfclock.c b/sys/dev/ppbus/pcfclock.c
index 0219220bd971..58bbf2c36e0a 100644
--- a/sys/dev/ppbus/pcfclock.c
+++ b/sys/dev/ppbus/pcfclock.c
@@ -133,7 +133,6 @@ pcfclock_probe(device_t dev)
 	device_set_desc(dev, "PCF-1.0");
 
 	sc = DEVTOSOFTC(dev);
-	bzero(sc, sizeof(struct pcfclock_data));
 	
 	return (0);
 }
diff --git a/sys/dev/ppbus/ppi.c b/sys/dev/ppbus/ppi.c
index b537c8809b1a..77a8f8f4c2ac 100644
--- a/sys/dev/ppbus/ppi.c
+++ b/sys/dev/ppbus/ppi.c
@@ -152,7 +152,6 @@ ppi_probe(device_t dev)
 	device_set_desc(dev, "Parallel I/O");
 
 	ppi = DEVTOSOFTC(dev);
-	bzero(ppi, sizeof(struct ppi_data));
 
 	return (0);
 }
diff --git a/sys/dev/ppbus/vpo.c b/sys/dev/ppbus/vpo.c
index 50ebf8135438..f01c0d12791b 100644
--- a/sys/dev/ppbus/vpo.c
+++ b/sys/dev/ppbus/vpo.c
@@ -107,7 +107,6 @@ vpo_probe(device_t dev)
 	int error;
 
 	vpo = DEVTOSOFTC(dev);
-	bzero(vpo, sizeof(struct vpo_data));
 
 	/* vpo dependent initialisation */
 	vpo->vpo_unit = device_get_unit(dev);