diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index 787e0d027f04741d5ba6ccc9858253fa45f194b2..a7dc1370695bd870988967b9eecbee08e5f8e1a0 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -501,12 +501,11 @@ locomo_init_one_child(struct locomo *lchip, struct locomo_dev_info *info)
 	struct locomo_dev *dev;
 	int ret;
 
-	dev = kmalloc(sizeof(struct locomo_dev), GFP_KERNEL);
+	dev = kzalloc(sizeof(struct locomo_dev), GFP_KERNEL);
 	if (!dev) {
 		ret = -ENOMEM;
 		goto out;
 	}
-	memset(dev, 0, sizeof(struct locomo_dev));
 
 	strncpy(dev->dev.bus_id,info->name,sizeof(dev->dev.bus_id));
 	/*
@@ -664,12 +663,10 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
 	unsigned long r;
 	int i, ret = -ENODEV;
 
-	lchip = kmalloc(sizeof(struct locomo), GFP_KERNEL);
+	lchip = kzalloc(sizeof(struct locomo), GFP_KERNEL);
 	if (!lchip)
 		return -ENOMEM;
 
-	memset(lchip, 0, sizeof(struct locomo));
-
 	spin_lock_init(&lchip->lock);
 
 	lchip->dev = me;
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 5ba1ee042349eab9a5b606737c988b4abc2f54dc..3f68db84e5e6c488920258f0911c4378cb35ccc2 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -541,12 +541,11 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent,
 	struct sa1111_dev *dev;
 	int ret;
 
-	dev = kmalloc(sizeof(struct sa1111_dev), GFP_KERNEL);
+	dev = kzalloc(sizeof(struct sa1111_dev), GFP_KERNEL);
 	if (!dev) {
 		ret = -ENOMEM;
 		goto out;
 	}
-	memset(dev, 0, sizeof(struct sa1111_dev));
 
 	snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
 		 "%4.4lx", info->offset);
@@ -621,12 +620,10 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
 	unsigned int has_devs, val;
 	int i, ret = -ENODEV;
 
-	sachip = kmalloc(sizeof(struct sa1111), GFP_KERNEL);
+	sachip = kzalloc(sizeof(struct sa1111), GFP_KERNEL);
 	if (!sachip)
 		return -ENOMEM;
 
-	memset(sachip, 0, sizeof(struct sa1111));
-
 	sachip->clk = clk_get(me, "GPIO27_CLK");
 	if (!sachip->clk) {
 		ret = PTR_ERR(sachip->clk);
diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c
index a2dfe0b0f1ec53d24a78e6c141b813772589f8db..5e830f444c6c6b9d8148b7cd34a505f30bdbf294 100644
--- a/arch/arm/common/scoop.c
+++ b/arch/arm/common/scoop.c
@@ -132,12 +132,10 @@ int __init scoop_probe(struct platform_device *pdev)
 	if (!mem)
 		return -EINVAL;
 
-	devptr = kmalloc(sizeof(struct scoop_dev), GFP_KERNEL);
-
+	devptr = kzalloc(sizeof(struct scoop_dev), GFP_KERNEL);
 	if (!devptr)
-		return  -ENOMEM;
+		return -ENOMEM;
 
-	memset(devptr, 0, sizeof(struct scoop_dev));
 	spin_lock_init(&devptr->scoop_lock);
 
 	inf = pdev->dev.platform_data;
diff --git a/arch/arm/kernel/apm.c b/arch/arm/kernel/apm.c
index 766b6c05c6db6a2cf9d97e4a0f8d4a84f475f63b..2bed290fec76b4522bee0befb6812f141f82aaab 100644
--- a/arch/arm/kernel/apm.c
+++ b/arch/arm/kernel/apm.c
@@ -357,10 +357,8 @@ static int apm_open(struct inode * inode, struct file * filp)
 {
 	struct apm_user *as;
 
-	as = (struct apm_user *)kmalloc(sizeof(*as), GFP_KERNEL);
+	as = (struct apm_user *)kzalloc(sizeof(*as), GFP_KERNEL);
 	if (as) {
-		memset(as, 0, sizeof(*as));
-
 		/*
 		 * XXX - this is a tiny bit broken, when we consider BSD
 		 * process accounting. If the device is opened by root, we
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index c4923fac8dff56bf9a6232b4554c643668fafe7b..de606dfa8db934dc53d24440a8f862372baf0ba4 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -540,12 +540,10 @@ static void __init pcibios_init_hw(struct hw_pci *hw)
 	int nr, busnr;
 
 	for (nr = busnr = 0; nr < hw->nr_controllers; nr++) {
-		sys = kmalloc(sizeof(struct pci_sys_data), GFP_KERNEL);
+		sys = kzalloc(sizeof(struct pci_sys_data), GFP_KERNEL);
 		if (!sys)
 			panic("PCI: unable to allocate sys data!");
 
-		memset(sys, 0, sizeof(struct pci_sys_data));
-
 		sys->hw      = hw;
 		sys->busnr   = busnr;
 		sys->swizzle = hw->swizzle;
diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index 74ea29c3205eb6b476a2c725858bf70895f9288f..00aa225e8d95ede70807e0f901bdb89d6da757a8 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -807,14 +807,12 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
 	unsigned long base;
 	int i;
 
-	ec = kmalloc(sizeof(ecard_t), GFP_KERNEL);
+	ec = kzalloc(sizeof(ecard_t), GFP_KERNEL);
 	if (!ec) {
 		ec = ERR_PTR(-ENOMEM);
 		goto nomem;
 	}
 
-	memset(ec, 0, sizeof(ecard_t));
-
 	ec->slot_no = slot;
 	ec->type = type;
 	ec->irq = NO_IRQ;
diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index e79884eea1f76d7c011f34ad52ff57196f5e771d..5dace2597838478b57dd4f577e61e37814565fa4 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -255,14 +255,12 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys)
 	if (nr || !footbridge_cfn_mode())
 		return 0;
 
-	res = kmalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
 	if (!res) {
 		printk("out of memory for root bus resources");
 		return 0;
 	}
 
-	memset(res, 0, sizeof(struct resource) * 2);
-
 	res[0].flags = IORESOURCE_MEM;
 	res[0].name  = "Footbridge non-prefetch";
 	res[1].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c
index a85d471c5bfaf0d8e064f7a9dfc59ae8c2abccea..92d79fb39311f73ee755abd6c67f6b8df6c5b3ed 100644
--- a/arch/arm/mach-integrator/impd1.c
+++ b/arch/arm/mach-integrator/impd1.c
@@ -355,12 +355,11 @@ static int impd1_probe(struct lm_device *dev)
 	if (!request_mem_region(dev->resource.start, SZ_4K, "LM registers"))
 		return -EBUSY;
 
-	impd1 = kmalloc(sizeof(struct impd1_module), GFP_KERNEL);
+	impd1 = kzalloc(sizeof(struct impd1_module), GFP_KERNEL);
 	if (!impd1) {
 		ret = -ENOMEM;
 		goto release_lm;
 	}
-	memset(impd1, 0, sizeof(struct impd1_module));
 
 	impd1->base = ioremap(dev->resource.start, SZ_4K);
 	if (!impd1->base) {
@@ -389,12 +388,10 @@ static int impd1_probe(struct lm_device *dev)
 
 		pc_base = dev->resource.start + idev->offset;
 
-		d = kmalloc(sizeof(struct amba_device), GFP_KERNEL);
+		d = kzalloc(sizeof(struct amba_device), GFP_KERNEL);
 		if (!d)
 			continue;
 
-		memset(d, 0, sizeof(struct amba_device));
-
 		snprintf(d->dev.bus_id, sizeof(d->dev.bus_id),
 			 "lm%x:%5.5lx", dev->id, idev->offset >> 12);
 
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index d8d3c2a5a97e22692e7decb9c176edead7ce036b..6d65c96ebfd2a05f988f8fde100b691e779ee4cc 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -319,12 +319,10 @@ static void __init ap_init(void)
 		if ((sc_dec & (16 << i)) == 0)
 			continue;
 
-		lmdev = kmalloc(sizeof(struct lm_device), GFP_KERNEL);
+		lmdev = kzalloc(sizeof(struct lm_device), GFP_KERNEL);
 		if (!lmdev)
 			continue;
 
-		memset(lmdev, 0, sizeof(struct lm_device));
-
 		lmdev->resource.start = 0xc0000000 + 0x10000000 * i;
 		lmdev->resource.end = lmdev->resource.start + 0x0fffffff;
 		lmdev->resource.flags = IORESOURCE_MEM;
diff --git a/arch/arm/mach-iop3xx/iq31244-pci.c b/arch/arm/mach-iop3xx/iq31244-pci.c
index c6a973ba8fc6f9aff7af143be17f4fdd95427720..f3c6413fa5bda594d9fab88197be88a7c71c2198 100644
--- a/arch/arm/mach-iop3xx/iq31244-pci.c
+++ b/arch/arm/mach-iop3xx/iq31244-pci.c
@@ -74,12 +74,10 @@ static int iq31244_setup(int nr, struct pci_sys_data *sys)
 	if(nr != 0)
 		return 0;
 
-	res = kmalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
 	if (!res)
 		panic("PCI: unable to alloc resources");
 
-	memset(res, 0, sizeof(struct resource) * 2);
-
 	res[0].start = IOP321_PCI_LOWER_IO_VA;
 	res[0].end   = IOP321_PCI_UPPER_IO_VA;
 	res[0].name  = "IQ31244 PCI I/O Space";
diff --git a/arch/arm/mach-iop3xx/iq80321-pci.c b/arch/arm/mach-iop3xx/iq80321-pci.c
index 802f6d091b75ec5b4f407fa2a3ffc6e7dedd2f22..d9758d3f6e7f14dd2dc9bd0e33d53277fa7f5d0f 100644
--- a/arch/arm/mach-iop3xx/iq80321-pci.c
+++ b/arch/arm/mach-iop3xx/iq80321-pci.c
@@ -68,12 +68,10 @@ static int iq80321_setup(int nr, struct pci_sys_data *sys)
 	if(nr != 0)
 		return 0;
 
-	res = kmalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
 	if (!res)
 		panic("PCI: unable to alloc resources");
 
-	memset(res, 0, sizeof(struct resource) * 2);
-
 	res[0].start = IOP321_PCI_LOWER_IO_VA;
 	res[0].end   = IOP321_PCI_UPPER_IO_VA;
 	res[0].name  = "IQ80321 PCI I/O Space";
diff --git a/arch/arm/mach-iop3xx/iq80331-pci.c b/arch/arm/mach-iop3xx/iq80331-pci.c
index 654e450a131170a28997f1a674bbff09c0cd160a..40d861002492e070b30c04ac5d7b8ef17c451bac 100644
--- a/arch/arm/mach-iop3xx/iq80331-pci.c
+++ b/arch/arm/mach-iop3xx/iq80331-pci.c
@@ -64,12 +64,10 @@ static int iq80331_setup(int nr, struct pci_sys_data *sys)
 	if(nr != 0)
 		return 0;
 
-	res = kmalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
 	if (!res)
 		panic("PCI: unable to alloc resources");
 
-	memset(res, 0, sizeof(struct resource) * 2);
-
 	res[0].start = IOP331_PCI_LOWER_IO_VA;
 	res[0].end   = IOP331_PCI_UPPER_IO_VA;
 	res[0].name  = "IQ80331 PCI I/O Space";
diff --git a/arch/arm/mach-iop3xx/iq80332-pci.c b/arch/arm/mach-iop3xx/iq80332-pci.c
index 65951ffe4631261485c2ab1c64655426ba771c89..afc0676318e4a1a3d67321b261738e7b9215b094 100644
--- a/arch/arm/mach-iop3xx/iq80332-pci.c
+++ b/arch/arm/mach-iop3xx/iq80332-pci.c
@@ -70,12 +70,10 @@ static int iq80332_setup(int nr, struct pci_sys_data *sys)
 	if(nr != 0)
 		return 0;
 
-	res = kmalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
 	if (!res)
 		panic("PCI: unable to alloc resources");
 
-	memset(res, 0, sizeof(struct resource) * 2);
-
 	res[0].start = IOP331_PCI_LOWER_IO_VA;
 	res[0].end   = IOP331_PCI_UPPER_IO_VA;
 	res[0].name  = "IQ80332 PCI I/O Space";
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index 6e3462ed53062ecfc5e032f6c22d9ae6975c0f1e..2d40fe1145f0d2f1f68272d3a46d99772323b463 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -463,7 +463,7 @@ int ixp4xx_setup(int nr, struct pci_sys_data *sys)
 	if (nr >= 1)
 		return 0;
 
-	res = kmalloc(sizeof(*res) * 2, GFP_KERNEL);
+	res = kzalloc(sizeof(*res) * 2, GFP_KERNEL);
 	if (res == NULL) {
 		/* 
 		 * If we're out of memory this early, something is wrong,
@@ -471,7 +471,6 @@ int ixp4xx_setup(int nr, struct pci_sys_data *sys)
 		 */
 		panic("PCI: unable to allocate resources?\n");
 	}
-	memset(res, 0, sizeof(*res) * 2);
 
 	local_write_config(PCI_COMMAND, 2, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);