Simpliest memset(,0,) -> M_ZERO changes. One (caddr *) cast removal,

otherwise just adding M_ZERO to malloc() and removing the immediately
adjacent memset(,0,).

5 files changed, 15 insertions, 21 deletions

diff --git a/sys/arch/alpha/tc/tc_dma_3000_500.c b/sys/arch/alpha/tc/tc_dma_3000_500.c
index 51faf6d9262..cc3ca7db769 100644
--- a/sys/arch/alpha/tc/tc_dma_3000_500.c
+++ b/sys/arch/alpha/tc/tc_dma_3000_500.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tc_dma_3000_500.c,v 1.2 2006/04/04 21:20:40 brad Exp $ */
+/* $OpenBSD: tc_dma_3000_500.c,v 1.3 2007/10/06 23:50:54 krw Exp $ */
 /* $NetBSD: tc_dma_3000_500.c,v 1.13 2001/07/19 06:40:03 thorpej Exp $ */
 
 /*-
@@ -94,10 +94,9 @@ tc_dma_init_3000_500(nslots)
 
 	/* Allocate per-slot DMA info. */
 	sisize = nslots * sizeof(struct tc_dma_slot_info);
-	tc_dma_slot_info = malloc(sisize, M_DEVBUF, M_NOWAIT);
+	tc_dma_slot_info = malloc(sisize, M_DEVBUF, M_NOWAIT | M_ZERO);
 	if (tc_dma_slot_info == NULL)
 		panic("tc_dma_init: can't allocate per-slot DMA info");
-	memset(tc_dma_slot_info, 0, sisize);
 
 	/* Default all slots to direct-mapped. */
 	for (i = 0; i < nslots; i++)
diff --git a/sys/arch/arm/arm/mem.c b/sys/arch/arm/arm/mem.c
index 8375052531f..bcf8367e212 100644
--- a/sys/arch/arm/arm/mem.c
+++ b/sys/arch/arm/arm/mem.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mem.c,v 1.6 2006/11/29 13:28:45 miod Exp $	*/
+/*	$OpenBSD: mem.c,v 1.7 2007/10/06 23:50:54 krw Exp $	*/
 /*	$NetBSD: mem.c,v 1.11 2003/10/16 12:02:58 jdolecek Exp $	*/
 
 /*
@@ -215,11 +215,9 @@ mmrw(dev, uio, flags)
 				uio->uio_resid = 0;
 				return (0);
 			}
-			if (zeropage == NULL) {
-				zeropage = (caddr_t)
-				    malloc(PAGE_SIZE, M_TEMP, M_WAITOK);
-				memset(zeropage, 0, PAGE_SIZE);
-			}
+			if (zeropage == NULL)
+				zeropage = malloc(PAGE_SIZE, M_TEMP,
+				    M_WAITOK | M_ZERO);
 			c = min(iov->iov_len, PAGE_SIZE);
 			error = uiomove(zeropage, c, uio);
 			break;
diff --git a/sys/arch/hppa/dev/apic.c b/sys/arch/hppa/dev/apic.c
index 631ac9cf259..7e8bc7f684d 100644
--- a/sys/arch/hppa/dev/apic.c
+++ b/sys/arch/hppa/dev/apic.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: apic.c,v 1.6 2007/07/01 14:20:50 kettenis Exp $	*/
+/*	$OpenBSD: apic.c,v 1.7 2007/10/06 23:50:54 krw Exp $	*/
 
 /*
  * Copyright (c) 2005 Michael Shalayeff
@@ -103,10 +103,10 @@ apic_attach(struct elroy_softc *sc)
 	printf(" APIC ver %x, %d pins",
 	    data & APIC_VERSION_MASK, sc->sc_nints);
 
-	sc->sc_irq = malloc(sc->sc_nints * sizeof(int), M_DEVBUF, M_NOWAIT);
+	sc->sc_irq = malloc(sc->sc_nints * sizeof(int), M_DEVBUF,
+	    M_NOWAIT | M_ZERO);
 	if (sc->sc_irq == NULL)
 		panic("apic_attach: cannot allocate irq table\n");
-	memset(sc->sc_irq, 0, sc->sc_nints * sizeof(int));
 
 	apic_get_int_tbl(sc);
 
diff --git a/sys/arch/hppa/dev/astro.c b/sys/arch/hppa/dev/astro.c
index d87a63a4b0e..13c18a086ee 100644
--- a/sys/arch/hppa/dev/astro.c
+++ b/sys/arch/hppa/dev/astro.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: astro.c,v 1.7 2007/07/01 12:53:52 kettenis Exp $	*/
+/*	$OpenBSD: astro.c,v 1.8 2007/10/06 23:50:54 krw Exp $	*/
 
 /*
  * Copyright (c) 2007 Mark Kettenis
@@ -589,12 +589,10 @@ iommu_iomap_create(int n)
 		n = 16;
 
 	ims = malloc(sizeof(*ims) + (n - 1) * sizeof(ims->ims_map.ipm_map[0]),
-		M_DEVBUF, M_NOWAIT);
+	    M_DEVBUF, M_NOWAIT | M_ZERO);
 	if (ims == NULL)
 		return (NULL);
 
-	memset(ims, 0, sizeof *ims);
-
 	/* Initialize the map. */
 	ims->ims_map.ipm_maxpage = n;
 	SPLAY_INIT(&ims->ims_map.ipm_tree);
diff --git a/sys/arch/sh/sh/mem.c b/sys/arch/sh/sh/mem.c
index 1ad93907c59..606376cb231 100644
--- a/sys/arch/sh/sh/mem.c
+++ b/sys/arch/sh/sh/mem.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mem.c,v 1.2 2006/12/05 19:55:43 drahn Exp $	*/
+/*	$OpenBSD: mem.c,v 1.3 2007/10/06 23:50:54 krw Exp $	*/
 /*	$NetBSD: mem.c,v 1.21 2006/07/23 22:06:07 ad Exp $	*/
 
 /*
@@ -193,10 +193,9 @@ mmrw(dev_t dev, struct uio *uio, int flags)
 				uio->uio_resid = 0;
 				return (0);
 			}
-			if (zeropage == NULL) {
-				zeropage = malloc(PAGE_SIZE, M_TEMP, M_WAITOK);
-				memset(zeropage, 0, PAGE_SIZE);
-			}
+			if (zeropage == NULL)
+				zeropage = malloc(PAGE_SIZE, M_TEMP,
+				    M_WAITOK | M_ZERO);
 			c = min(iov->iov_len, PAGE_SIZE);
 			error = uiomove(zeropage, c, uio);
 			break;