49 files changed, 62 insertions, 142 deletions

diff --git a/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h b/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h
index 3682503e341..c3284eb0f0a 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h
+++ b/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h
@@ -260,12 +260,10 @@ void v_pci_card_list_init(unsigned short pci_vendor, char display)
                 for (i_Count = 0; i_Count < 2; i_Count++) {
                         pci_vendor = i_ADDIDATADeviceID[i_Count];
                         if (pcidev->vendor == pci_vendor) {
-                                amcc = kmalloc(sizeof(*amcc), GFP_KERNEL);
+                                amcc = kzalloc(sizeof(*amcc), GFP_KERNEL);
                                 if (amcc == NULL)
                                         continue;
 
-                                memset(amcc, 0, sizeof(*amcc));
-
                                 amcc->pcidev = pcidev;
                                 if (last)
                                         last->next = amcc;
diff --git a/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h b/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
index 49141b3558e..349e93c23e9 100644
--- a/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
+++ b/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
@@ -253,12 +253,10 @@ void v_pci_card_list_init(unsigned short pci_vendor, char display)
 
         pci_for_each_dev(pcidev) {
                 if (pcidev->vendor == pci_vendor) {
-                        amcc = kmalloc(sizeof(*amcc), GFP_KERNEL);
+                        amcc = kzalloc(sizeof(*amcc), GFP_KERNEL);
                         if (amcc == NULL)
                                 continue;
 
-                        memset(amcc, 0, sizeof(*amcc));
-
                         amcc->pcidev = pcidev;
                         if (last) {
                                 last->next = amcc;
diff --git a/drivers/staging/comedi/drivers/icp_multi.h b/drivers/staging/comedi/drivers/icp_multi.h
index 8caadc630ed..2bb96b1d21e 100644
--- a/drivers/staging/comedi/drivers/icp_multi.h
+++ b/drivers/staging/comedi/drivers/icp_multi.h
@@ -73,14 +73,13 @@ static void pci_card_list_init(unsigned short pci_vendor, char display)
              pcidev != NULL;
              pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) {
                 if (pcidev->vendor == pci_vendor) {
-                        inova = kmalloc(sizeof(*inova), GFP_KERNEL);
+                        inova = kzalloc(sizeof(*inova), GFP_KERNEL);
                         if (!inova) {
                                 printk
                                     ("icp_multi: pci_card_list_init: allocation failed\n");
                                 pci_dev_put(pcidev);
                                 break;
                         }
-                        memset(inova, 0, sizeof(*inova));
 
                         inova->pcidev = pci_dev_get(pcidev);
                         if (last) {
diff --git a/drivers/staging/dream/pmem.c b/drivers/staging/dream/pmem.c
index dbd2b1d14c4..6387365a833 100644
--- a/drivers/staging/dream/pmem.c
+++ b/drivers/staging/dream/pmem.c
@@ -1245,14 +1245,11 @@ int pmem_setup(struct android_pmem_platform_data *pdata,
         }
         pmem[id].num_entries = pmem[id].size / PMEM_MIN_ALLOC;
 
-        pmem[id].bitmap = kmalloc(pmem[id].num_entries *
+        pmem[id].bitmap = kcalloc(pmem[id].num_entries,
                                   sizeof(struct pmem_bits), GFP_KERNEL);
         if (!pmem[id].bitmap)
                 goto err_no_mem_for_metadata;
 
-        memset(pmem[id].bitmap, 0, sizeof(struct pmem_bits) *
-                                          pmem[id].num_entries);
-
         for (i = sizeof(pmem[id].num_entries) * 8 - 1; i >= 0; i--) {
                 if ((pmem[id].num_entries) &  1<<i) {
                         PMEM_ORDER(id, index) = i;
diff --git a/drivers/staging/go7007/go7007-fw.c b/drivers/staging/go7007/go7007-fw.c
index ee622ff1707..c9a6409edfe 100644
--- a/drivers/staging/go7007/go7007-fw.c
+++ b/drivers/staging/go7007/go7007-fw.c
@@ -380,13 +380,12 @@ static int gen_mjpeghdr_to_package(struct go7007 *go, __le16 *code, int space)
         unsigned int addr = 0x19;
         int size = 0, i, off = 0, chunk;
 
-        buf = kmalloc(4096, GFP_KERNEL);
+        buf = kzalloc(4096, GFP_KERNEL);
         if (buf == NULL) {
                 printk(KERN_ERR "go7007: unable to allocate 4096 bytes for "
                                 "firmware construction\n");
                 return -1;
         }
-        memset(buf, 0, 4096);
 
         for (i = 1; i < 32; ++i) {
                 mjpeg_frame_header(go, buf + size, i);
@@ -651,13 +650,12 @@ static int gen_mpeg1hdr_to_package(struct go7007 *go,
         unsigned int addr = 0x19;
         int i, off = 0, chunk;
 
-        buf = kmalloc(5120, GFP_KERNEL);
+        buf = kzalloc(5120, GFP_KERNEL);
         if (buf == NULL) {
                 printk(KERN_ERR "go7007: unable to allocate 5120 bytes for "
                                 "firmware construction\n");
                 return -1;
         }
-        memset(buf, 0, 5120);
         framelen[0] = mpeg1_frame_header(go, buf, 0, 1, PFRAME);
         if (go->interlace_coding)
                 framelen[0] += mpeg1_frame_header(go, buf + framelen[0] / 8,
@@ -839,13 +837,12 @@ static int gen_mpeg4hdr_to_package(struct go7007 *go,
         unsigned int addr = 0x19;
         int i, off = 0, chunk;
 
-        buf = kmalloc(5120, GFP_KERNEL);
+        buf = kzalloc(5120, GFP_KERNEL);
         if (buf == NULL) {
                 printk(KERN_ERR "go7007: unable to allocate 5120 bytes for "
                                 "firmware construction\n");
                 return -1;
         }
-        memset(buf, 0, 5120);
         framelen[0] = mpeg4_frame_header(go, buf, 0, PFRAME);
         i = 368;
         framelen[1] = mpeg4_frame_header(go, buf + i, 0, BFRAME_PRE);
@@ -1585,13 +1582,12 @@ int go7007_construct_fw_image(struct go7007 *go, u8 **fw, int *fwlen)
                         go->board_info->firmware);
                 return -1;
         }
-        code = kmalloc(codespace * 2, GFP_KERNEL);
+        code = kzalloc(codespace * 2, GFP_KERNEL);
         if (code == NULL) {
                 printk(KERN_ERR "go7007: unable to allocate %d bytes for "
                                 "firmware construction\n", codespace * 2);
                 goto fw_failed;
         }
-        memset(code, 0, codespace * 2);
         src = (__le16 *)fw_entry->data;
         srclen = fw_entry->size / 2;
         while (srclen >= 2) {
diff --git a/drivers/staging/go7007/go7007-usb.c b/drivers/staging/go7007/go7007-usb.c
index ee278f64a16..20ed930b588 100644
--- a/drivers/staging/go7007/go7007-usb.c
+++ b/drivers/staging/go7007/go7007-usb.c
@@ -670,10 +670,9 @@ static int go7007_usb_onboard_write_interrupt(struct go7007 *go,
                 "go7007-usb: WriteInterrupt: %04x %04x\n", addr, data);
 #endif
 
-        tbuf = kmalloc(8, GFP_KERNEL);
+        tbuf = kzalloc(8, GFP_KERNEL);
         if (tbuf == NULL)
                 return -ENOMEM;
-        memset(tbuf, 0, 8);
         tbuf[0] = data & 0xff;
         tbuf[1] = data >> 8;
         tbuf[2] = addr & 0xff;
diff --git a/drivers/staging/go7007/go7007-v4l2.c b/drivers/staging/go7007/go7007-v4l2.c
index 723c1a64d87..46b4b9f6855 100644
--- a/drivers/staging/go7007/go7007-v4l2.c
+++ b/drivers/staging/go7007/go7007-v4l2.c
@@ -720,7 +720,7 @@ static int vidioc_reqbufs(struct file *file, void *priv,
                 if (count > 32)
                         count = 32;
 
-                gofh->bufs = kmalloc(count * sizeof(struct go7007_buffer),
+                gofh->bufs = kcalloc(count, sizeof(struct go7007_buffer),
                                      GFP_KERNEL);
 
                 if (!gofh->bufs) {
@@ -728,8 +728,6 @@ static int vidioc_reqbufs(struct file *file, void *priv,
                         goto unlock_and_return;
                 }
 
-                memset(gofh->bufs, 0, count * sizeof(struct go7007_buffer));
-
                 for (i = 0; i < count; ++i) {
                         gofh->bufs[i].go = go;
                         gofh->bufs[i].index = i;
diff --git a/drivers/staging/go7007/saa7134-go7007.c b/drivers/staging/go7007/saa7134-go7007.c
index b25d7d2090e..49f0d31c118 100644
--- a/drivers/staging/go7007/saa7134-go7007.c
+++ b/drivers/staging/go7007/saa7134-go7007.c
@@ -440,10 +440,9 @@ static int saa7134_go7007_init(struct saa7134_dev *dev)
 
         printk(KERN_DEBUG "saa7134-go7007: probing new SAA713X board\n");
 
-        saa = kmalloc(sizeof(struct saa7134_go7007), GFP_KERNEL);
+        saa = kzalloc(sizeof(struct saa7134_go7007), GFP_KERNEL);
         if (saa == NULL)
                 return -ENOMEM;
-        memset(saa, 0, sizeof(struct saa7134_go7007));
 
         /* Allocate a couple pages for receiving the compressed stream */
         saa->top = (u8 *)get_zeroed_page(GFP_KERNEL);
diff --git a/drivers/staging/otus/zdusb.c b/drivers/staging/otus/zdusb.c
index 6509bc565e6..2c799a25029 100644
--- a/drivers/staging/otus/zdusb.c
+++ b/drivers/staging/otus/zdusb.c
@@ -95,7 +95,7 @@ static int zfLnxProbe(struct usb_interface *interface,
         printk(KERN_NOTICE "USB 1.1 Host\n");
 #endif
 
-    macp = kmalloc(sizeof(struct usbdrv_private), GFP_KERNEL);
+    macp = kzalloc(sizeof(struct usbdrv_private), GFP_KERNEL);
     if (!macp)
     {
         printk(KERN_ERR "out of memory allocating device structure\n");
@@ -103,9 +103,6 @@ static int zfLnxProbe(struct usb_interface *interface,
         goto fail;
     }
 
-    /* Zero the memory */
-    memset(macp, 0, sizeof(struct usbdrv_private));
-
     net = alloc_etherdev(0);
 
     if (net == NULL)
diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index f9fcb2fef5a..9ca0e9e2a96 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -1906,12 +1906,11 @@ static struct logical_input *panel_bind_key(char *name, char *press,
 {
         struct logical_input *key;
 
-        key = kmalloc(sizeof(struct logical_input), GFP_KERNEL);
+        key = kzalloc(sizeof(struct logical_input), GFP_KERNEL);
         if (!key) {
                 printk(KERN_ERR "panel: not enough memory\n");
                 return NULL;
         }
-        memset(key, 0, sizeof(struct logical_input));
         if (!input_name2mask(name, &key->mask, &key->value, &scan_mask_i,
                              &scan_mask_o))
                 return NULL;
diff --git a/drivers/staging/pohmelfs/config.c b/drivers/staging/pohmelfs/config.c
index 6571a6ae05a..9fdf2de347e 100644
--- a/drivers/staging/pohmelfs/config.c
+++ b/drivers/staging/pohmelfs/config.c
@@ -238,11 +238,10 @@ static int pohmelfs_send_reply(int err, int msg_num, int action, struct cn_msg *
 {
         struct pohmelfs_cn_ack *ack;
 
-        ack = kmalloc(sizeof(struct pohmelfs_cn_ack), GFP_KERNEL);
+        ack = kzalloc(sizeof(struct pohmelfs_cn_ack), GFP_KERNEL);
         if (!ack)
                 return -ENOMEM;
 
-        memset(ack, 0, sizeof(struct pohmelfs_cn_ack));
         memcpy(&ack->msg, msg, sizeof(struct cn_msg));
 
         if (action == POHMELFS_CTLINFO_ACK)
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c
index 4c5d63fd583..c8dbcb92591 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c
@@ -109,11 +109,10 @@ int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops)
         if (hcrypt == NULL)
                 return -1;
 
-        alg = kmalloc(sizeof(*alg), GFP_KERNEL);
+        alg = kzalloc(sizeof(*alg), GFP_KERNEL);
         if (alg == NULL)
                 return -ENOMEM;
 
-        memset(alg, 0, sizeof(*alg));
         alg->ops = ops;
 
         spin_lock_irqsave(&hcrypt->lock, flags);
@@ -207,11 +206,10 @@ int ieee80211_crypto_init(void)
 {
         int ret = -ENOMEM;
 
-        hcrypt = kmalloc(sizeof(*hcrypt), GFP_KERNEL);
+        hcrypt = kzalloc(sizeof(*hcrypt), GFP_KERNEL);
         if (!hcrypt)
                 goto out;
 
-        memset(hcrypt, 0, sizeof(*hcrypt));
         INIT_LIST_HEAD(&hcrypt->algs);
         spin_lock_init(&hcrypt->lock);
 
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c
index 40f1b99faad..731d2686411 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c
@@ -69,10 +69,9 @@ static void * ieee80211_ccmp_init(int key_idx)
 {
         struct ieee80211_ccmp_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = key_idx;
 
         priv->tfm = (void *)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c
index a5254111d9a..ee71ee90fd8 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c
@@ -70,10 +70,9 @@ static void * ieee80211_tkip_init(int key_idx)
 {
         struct ieee80211_tkip_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = key_idx;
 
         priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_wep.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_wep.c
index c6c3bc38459..f790cd65f10 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_wep.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_wep.c
@@ -45,10 +45,9 @@ static void * prism2_wep_init(int keyidx)
 {
         struct prism2_wep_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = keyidx;
         priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
         if (IS_ERR(priv->tx_tfm)) {
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_module.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_module.c
index 18392fce487..9d58a429c56 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_module.c
@@ -66,8 +66,8 @@ static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
         if (ieee->networks)
                 return 0;
 
-        ieee->networks = kmalloc(
-                MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
+        ieee->networks = kcalloc(
+                MAX_NETWORK_COUNT, sizeof(struct ieee80211_network),
                 GFP_KERNEL);
         if (!ieee->networks) {
                 printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
@@ -75,9 +75,6 @@ static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
                 return -ENOMEM;
         }
 
-        memset(ieee->networks, 0,
-               MAX_NETWORK_COUNT * sizeof(struct ieee80211_network));
-
         return 0;
 }
 
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c
index c5b80f9c32c..aa3ba450ece 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c
@@ -325,11 +325,10 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
                 struct ieee80211_crypt_data *new_crypt;
 
                 /* take WEP into use */
-                new_crypt = kmalloc(sizeof(struct ieee80211_crypt_data),
+                new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
                                     GFP_KERNEL);
                 if (new_crypt == NULL)
                         return -ENOMEM;
-                memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
                 new_crypt->ops = ieee80211_get_crypto_ops("WEP");
                 if (!new_crypt->ops)
                         new_crypt->ops = ieee80211_get_crypto_ops("WEP");
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt.c
index b3c9bf4b4ea..d5aa9af3d9f 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt.c
@@ -109,11 +109,10 @@ int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops)
         if (hcrypt == NULL)
                 return -1;
 
-        alg = kmalloc(sizeof(*alg), GFP_KERNEL);
+        alg = kzalloc(sizeof(*alg), GFP_KERNEL);
         if (alg == NULL)
                 return -ENOMEM;
 
-        memset(alg, 0, sizeof(*alg));
         alg->ops = ops;
 
         spin_lock_irqsave(&hcrypt->lock, flags);
@@ -207,11 +206,10 @@ int __init ieee80211_crypto_init(void)
 {
         int ret = -ENOMEM;
 
-        hcrypt = kmalloc(sizeof(*hcrypt), GFP_KERNEL);
+        hcrypt = kzalloc(sizeof(*hcrypt), GFP_KERNEL);
         if (!hcrypt)
                 goto out;
 
-        memset(hcrypt, 0, sizeof(*hcrypt));
         INIT_LIST_HEAD(&hcrypt->algs);
         spin_lock_init(&hcrypt->lock);
 
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_ccmp.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_ccmp.c
index 1776f7e69bf..7165c4c75c7 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_ccmp.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_ccmp.c
@@ -96,10 +96,9 @@ static void * ieee80211_ccmp_init(int key_idx)
 {
         struct ieee80211_ccmp_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = key_idx;
 
 #if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_tkip.c
index 03cb21eb065..65f48896bfa 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_tkip.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_tkip.c
@@ -87,10 +87,9 @@ static void * ieee80211_tkip_init(int key_idx)
 {
         struct ieee80211_tkip_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = key_idx;
 #if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
         priv->tx_tfm_arc4 = crypto_alloc_tfm("arc4", 0);
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_wep.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_wep.c
index 5678313e30a..c4bbc8ddbad 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_wep.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_crypt_wep.c
@@ -71,10 +71,9 @@ static void * prism2_wep_init(int keyidx)
 {
         struct prism2_wep_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = keyidx;
 
 #if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
index c7aa1c63cb1..614a8b630e6 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
@@ -65,8 +65,8 @@ static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
         if (ieee->networks)
                 return 0;
 
-        ieee->networks = kmalloc(
-                MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
+        ieee->networks = kcalloc(
+                MAX_NETWORK_COUNT, sizeof(struct ieee80211_network),
                 GFP_KERNEL);
         if (!ieee->networks) {
                 printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
@@ -74,9 +74,6 @@ static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
                 return -ENOMEM;
         }
 
-        memset(ieee->networks, 0,
-               MAX_NETWORK_COUNT * sizeof(struct ieee80211_network));
-
         return 0;
 }
 
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
index 4f6ce06b606..215542a00ef 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
@@ -3079,10 +3079,9 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee)
           ieee->seq_ctrl[i] = 0;
         }
 #ifdef ENABLE_DOT11D
-        ieee->pDot11dInfo = kmalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
+        ieee->pDot11dInfo = kzalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
         if (!ieee->pDot11dInfo)
                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for DOT11D\n");
-        memset(ieee->pDot11dInfo, 0, sizeof(RT_DOT11D_INFO));
 #endif
         //added for  AP roaming
         ieee->LinkDetectInfo.SlotNum = 2;
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c
index de57967b968..fcabaf3c88d 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c
@@ -477,11 +477,10 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
                 struct ieee80211_crypt_data *new_crypt;
 
                 /* take WEP into use */
-                new_crypt = kmalloc(sizeof(struct ieee80211_crypt_data),
+                new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
                                     GFP_KERNEL);
                 if (new_crypt == NULL)
                         return -ENOMEM;
-                memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
                 new_crypt->ops = ieee80211_get_crypto_ops("WEP");
                 if (!new_crypt->ops)
                         new_crypt->ops = ieee80211_get_crypto_ops("WEP");
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.c
index c4640e63196..80194233943 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.c
@@ -109,11 +109,10 @@ int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops)
         if (hcrypt == NULL)
                 return -1;
 
-        alg = kmalloc(sizeof(*alg), GFP_KERNEL);
+        alg = kzalloc(sizeof(*alg), GFP_KERNEL);
         if (alg == NULL)
                 return -ENOMEM;
 
-        memset(alg, 0, sizeof(*alg));
         alg->ops = ops;
 
         spin_lock_irqsave(&hcrypt->lock, flags);
@@ -206,11 +205,10 @@ int __init ieee80211_crypto_init(void)
 {
         int ret = -ENOMEM;
 
-        hcrypt = kmalloc(sizeof(*hcrypt), GFP_KERNEL);
+        hcrypt = kzalloc(sizeof(*hcrypt), GFP_KERNEL);
         if (!hcrypt)
                 goto out;
 
-        memset(hcrypt, 0, sizeof(*hcrypt));
         INIT_LIST_HEAD(&hcrypt->algs);
         spin_lock_init(&hcrypt->lock);
 
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_ccmp.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_ccmp.c
index 8a93f7d3eb3..77de957f1b1 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_ccmp.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_ccmp.c
@@ -68,10 +68,9 @@ static void * ieee80211_ccmp_init(int key_idx)
 {
         struct ieee80211_ccmp_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = key_idx;
 
         priv->tfm = (void *)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
index 7e48748da10..ade5f6f1366 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
@@ -67,10 +67,9 @@ static void * ieee80211_tkip_init(int key_idx)
 {
         struct ieee80211_tkip_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = key_idx;
 
         priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_wep.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_wep.c
index 64f9cf01c94..a1c0a59122b 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_wep.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_wep.c
@@ -43,10 +43,9 @@ static void * prism2_wep_init(int keyidx)
 {
         struct prism2_wep_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = keyidx;
 
         priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
index 73de3baf915..a87650a517b 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
@@ -65,8 +65,8 @@ static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
         if (ieee->networks)
                 return 0;
 
-        ieee->networks = kmalloc(
-                MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
+        ieee->networks = kcalloc(
+                MAX_NETWORK_COUNT, sizeof(struct ieee80211_network),
                 GFP_KERNEL);
         if (!ieee->networks) {
                 printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
@@ -74,9 +74,6 @@ static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
                 return -ENOMEM;
         }
 
-        memset(ieee->networks, 0,
-               MAX_NETWORK_COUNT * sizeof(struct ieee80211_network));
-
         return 0;
 }
 
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
index 660aee2874a..b9fa15fccb7 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
@@ -2699,10 +2699,9 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee)
         for(i = 0; i < 5; i++) {
           ieee->seq_ctrl[i] = 0;
         }
-        ieee->pDot11dInfo = kmalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
+        ieee->pDot11dInfo = kzalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
         if (!ieee->pDot11dInfo)
                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for DOT11D\n");
-        memset(ieee->pDot11dInfo, 0, sizeof(RT_DOT11D_INFO));
         //added for  AP roaming
         ieee->LinkDetectInfo.SlotNum = 2;
         ieee->LinkDetectInfo.NumRecvBcnInPeriod=0;
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_wx.c
index 727cc552c5e..db54ad096da 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_wx.c
@@ -352,11 +352,10 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
                 struct ieee80211_crypt_data *new_crypt;
 
                 /* take WEP into use */
-                new_crypt = kmalloc(sizeof(struct ieee80211_crypt_data),
+                new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
                                     GFP_KERNEL);
                 if (new_crypt == NULL)
                         return -ENOMEM;
-                memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
                 new_crypt->ops = ieee80211_get_crypto_ops("WEP");
                 if (!new_crypt->ops)
                         new_crypt->ops = ieee80211_get_crypto_ops("WEP");
diff --git a/drivers/staging/rtl8192u/ieee80211/api.c b/drivers/staging/rtl8192u/ieee80211/api.c
index c627d029528..5f46e50e586 100644
--- a/drivers/staging/rtl8192u/ieee80211/api.c
+++ b/drivers/staging/rtl8192u/ieee80211/api.c
@@ -131,12 +131,10 @@ struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
         if (alg == NULL)
                 goto out;
 
-        tfm = kmalloc(sizeof(*tfm) + alg->cra_ctxsize, GFP_KERNEL);
+        tfm = kzalloc(sizeof(*tfm) + alg->cra_ctxsize, GFP_KERNEL);
         if (tfm == NULL)
                 goto out_put;
 
-        memset(tfm, 0, sizeof(*tfm) + alg->cra_ctxsize);
-
         tfm->__crt_alg = alg;
 
         if (crypto_init_flags(tfm, flags))
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
index 521e7b98993..8707eba4f90 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
@@ -109,11 +109,10 @@ int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops)
         if (hcrypt == NULL)
                 return -1;
 
-        alg = kmalloc(sizeof(*alg), GFP_KERNEL);
+        alg = kzalloc(sizeof(*alg), GFP_KERNEL);
         if (alg == NULL)
                 return -ENOMEM;
 
-        memset(alg, 0, sizeof(*alg));
         alg->ops = ops;
 
         spin_lock_irqsave(&hcrypt->lock, flags);
@@ -206,11 +205,10 @@ int __init ieee80211_crypto_init(void)
 {
         int ret = -ENOMEM;
 
-        hcrypt = kmalloc(sizeof(*hcrypt), GFP_KERNEL);
+        hcrypt = kzalloc(sizeof(*hcrypt), GFP_KERNEL);
         if (!hcrypt)
                 goto out;
 
-        memset(hcrypt, 0, sizeof(*hcrypt));
         INIT_LIST_HEAD(&hcrypt->algs);
         spin_lock_init(&hcrypt->lock);
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c
index 0b57632bcff..4b078e53638 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c
@@ -68,10 +68,9 @@ static void * ieee80211_ccmp_init(int key_idx)
 {
         struct ieee80211_ccmp_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = key_idx;
 
        priv->tfm = (void*)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
index 9510507d8d0..a98584c845b 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
@@ -67,10 +67,9 @@ static void * ieee80211_tkip_init(int key_idx)
 {
         struct ieee80211_tkip_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = key_idx;
 
         priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c
index 61ad11cae38..96c2c9d67fd 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c
@@ -43,10 +43,9 @@ static void * prism2_wep_init(int keyidx)
 {
         struct prism2_wep_data *priv;
 
-        priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+        priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
         if (priv == NULL)
                 goto fail;
-        memset(priv, 0, sizeof(*priv));
         priv->key_idx = keyidx;
 
         priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
index 1111002bad9..7455264aa54 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
@@ -65,8 +65,8 @@ static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
         if (ieee->networks)
                 return 0;
 
-        ieee->networks = kmalloc(
-                MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
+        ieee->networks = kcalloc(
+                MAX_NETWORK_COUNT, sizeof(struct ieee80211_network),
                 GFP_KERNEL);
         if (!ieee->networks) {
                 printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
@@ -74,9 +74,6 @@ static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
                 return -ENOMEM;
         }
 
-        memset(ieee->networks, 0,
-               MAX_NETWORK_COUNT * sizeof(struct ieee80211_network));
-
         return 0;
 }
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index 6c6bf9f6e78..a6955e2b45c 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -2723,10 +2723,9 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee)
           ieee->seq_ctrl[i] = 0;
         }
 #ifdef ENABLE_DOT11D
-        ieee->pDot11dInfo = kmalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
+        ieee->pDot11dInfo = kzalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
         if (!ieee->pDot11dInfo)
                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for DOT11D\n");
-        memset(ieee->pDot11dInfo, 0, sizeof(RT_DOT11D_INFO));
 #endif
         //added for  AP roaming
         ieee->LinkDetectInfo.SlotNum = 2;
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
index 4d5348e6c10..79b180f79e8 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
@@ -379,11 +379,10 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
                 struct ieee80211_crypt_data *new_crypt;
 
                 /* take WEP into use */
-                new_crypt = kmalloc(sizeof(struct ieee80211_crypt_data),
+                new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
                                     GFP_KERNEL);
                 if (new_crypt == NULL)
                         return -ENOMEM;
-                memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
                 new_crypt->ops = ieee80211_get_crypto_ops("WEP");
                 if (!new_crypt->ops) {
                         request_module("ieee80211_crypt_wep");
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index cbbc7d32fcf..2bede271a2f 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -2251,13 +2251,11 @@ short rtl8192_usb_initendpoints(struct net_device *dev)
 #endif
 
         memset(priv->rx_urb, 0, sizeof(struct urb*) * MAX_RX_URB);
-        priv->pp_rxskb = kmalloc(sizeof(struct sk_buff *) * MAX_RX_URB,
+        priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
                                  GFP_KERNEL);
         if (priv->pp_rxskb == NULL)
                 goto destroy;
 
-        memset(priv->pp_rxskb, 0, sizeof(struct sk_buff*) * MAX_RX_URB);
-
         goto _middle;
 
 
diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c
index e817a20d1bd..9ffeb36ddde 100644
--- a/drivers/staging/sm7xx/smtcfb.c
+++ b/drivers/staging/sm7xx/smtcfb.c
@@ -688,13 +688,11 @@ static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev,
 {
         struct smtcfb_info *sfb;
 
-        sfb = kmalloc(sizeof(struct smtcfb_info), GFP_KERNEL);
+        sfb = kzalloc(sizeof(struct smtcfb_info), GFP_KERNEL);
 
         if (!sfb)
                 return NULL;
 
-        memset(sfb, 0, sizeof(struct smtcfb_info));
-
         sfb->currcon = -1;
         sfb->dev = dev;
 
diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.c b/drivers/staging/vme/bridges/vme_ca91cx42.c
index c35dead64a3..0c82eb47a28 100644
--- a/drivers/staging/vme/bridges/vme_ca91cx42.c
+++ b/drivers/staging/vme/bridges/vme_ca91cx42.c
@@ -1494,7 +1494,7 @@ static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         /* We want to support more than one of each bridge so we need to
          * dynamically allocate the bridge structure
          */
-        ca91cx42_bridge = kmalloc(sizeof(struct vme_bridge), GFP_KERNEL);
+        ca91cx42_bridge = kzalloc(sizeof(struct vme_bridge), GFP_KERNEL);
 
         if (ca91cx42_bridge == NULL) {
                 dev_err(&pdev->dev, "Failed to allocate memory for device "
@@ -1503,9 +1503,7 @@ static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                 goto err_struct;
         }
 
-        memset(ca91cx42_bridge, 0, sizeof(struct vme_bridge));
-
-        ca91cx42_device = kmalloc(sizeof(struct ca91cx42_driver), GFP_KERNEL);
+        ca91cx42_device = kzalloc(sizeof(struct ca91cx42_driver), GFP_KERNEL);
 
         if (ca91cx42_device == NULL) {
                 dev_err(&pdev->dev, "Failed to allocate memory for device "
@@ -1514,8 +1512,6 @@ static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                 goto err_driver;
         }
 
-        memset(ca91cx42_device, 0, sizeof(struct ca91cx42_driver));
-
         ca91cx42_bridge->driver_priv = ca91cx42_device;
 
         /* Enable the device */
diff --git a/drivers/staging/vme/bridges/vme_tsi148.c b/drivers/staging/vme/bridges/vme_tsi148.c
index 7539cce6e2a..cf8cf37a82c 100644
--- a/drivers/staging/vme/bridges/vme_tsi148.c
+++ b/drivers/staging/vme/bridges/vme_tsi148.c
@@ -2230,7 +2230,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         /* If we want to support more than one of each bridge, we need to
          * dynamically generate this so we get one per device
          */
-        tsi148_bridge = kmalloc(sizeof(struct vme_bridge), GFP_KERNEL);
+        tsi148_bridge = kzalloc(sizeof(struct vme_bridge), GFP_KERNEL);
         if (tsi148_bridge == NULL) {
                 dev_err(&pdev->dev, "Failed to allocate memory for device "
                         "structure\n");
@@ -2238,9 +2238,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                 goto err_struct;
         }
 
-        memset(tsi148_bridge, 0, sizeof(struct vme_bridge));
-
-        tsi148_device = kmalloc(sizeof(struct tsi148_driver), GFP_KERNEL);
+        tsi148_device = kzalloc(sizeof(struct tsi148_driver), GFP_KERNEL);
         if (tsi148_device == NULL) {
                 dev_err(&pdev->dev, "Failed to allocate memory for device "
                         "structure\n");
@@ -2248,8 +2246,6 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                 goto err_driver;
         }
 
-        memset(tsi148_device, 0, sizeof(struct tsi148_driver));
-
         tsi148_bridge->driver_priv = tsi148_device;
 
         /* Enable the device */
diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
index fb7775c5233..195cc36654a 100644
--- a/drivers/staging/vt6655/hostap.c
+++ b/drivers/staging/vt6655/hostap.c
@@ -90,10 +90,9 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
 
-        pDevice->apdev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
+        pDevice->apdev = kzalloc(sizeof(struct net_device), GFP_KERNEL);
         if (pDevice->apdev == NULL)
                 return -ENOMEM;
-        memset(pDevice->apdev, 0, sizeof(struct net_device));
 
     apdev_priv = netdev_priv(pDevice->apdev);
     *apdev_priv = *pDevice;
diff --git a/drivers/staging/vt6655/wpactl.c b/drivers/staging/vt6655/wpactl.c
index e5e618eb6bb..9f215dfa86e 100644
--- a/drivers/staging/vt6655/wpactl.c
+++ b/drivers/staging/vt6655/wpactl.c
@@ -681,13 +681,12 @@ static int wpa_get_scan(PSDevice pDevice,
         count++;
     };
 
-    pBuf = kmalloc(sizeof(struct viawget_scan_result) * count, (int)GFP_ATOMIC);
+    pBuf = kcalloc(count, sizeof(struct viawget_scan_result), (int)GFP_ATOMIC);
 
     if (pBuf == NULL) {
         ret = -ENOMEM;
         return ret;
     }
-        memset(pBuf, 0, sizeof(struct viawget_scan_result) * count);
     scan_buf = (struct viawget_scan_result *)pBuf;
         pBSS = &(pMgmt->sBSSList[0]);
     for (ii = 0, jj = 0; ii < MAX_BSS_NUM ; ii++) {
diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
index 44386316b21..93e52a3ebd8 100644
--- a/drivers/staging/vt6656/hostap.c
+++ b/drivers/staging/vt6656/hostap.c
@@ -91,10 +91,9 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
 
-        pDevice->apdev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
+        pDevice->apdev = kzalloc(sizeof(struct net_device), GFP_KERNEL);
         if (pDevice->apdev == NULL)
                 return -ENOMEM;
-        memset(pDevice->apdev, 0, sizeof(struct net_device));
 
     apdev_priv = netdev_priv(pDevice->apdev);
     *apdev_priv = *pDevice;
diff --git a/drivers/staging/vt6656/wpactl.c b/drivers/staging/vt6656/wpactl.c
index 8f7ad2c4308..961f583368a 100644
--- a/drivers/staging/vt6656/wpactl.c
+++ b/drivers/staging/vt6656/wpactl.c
@@ -678,13 +678,12 @@ static int wpa_get_scan(PSDevice pDevice,
         count++;
     };
 
-    pBuf = kmalloc(sizeof(struct viawget_scan_result) * count, (int)GFP_ATOMIC);
+    pBuf = kcalloc(count, sizeof(struct viawget_scan_result), (int)GFP_ATOMIC);
 
     if (pBuf == NULL) {
         ret = -ENOMEM;
         return ret;
     }
-        memset(pBuf, 0, sizeof(struct viawget_scan_result) * count);
     scan_buf = (struct viawget_scan_result *)pBuf;
         pBSS = &(pMgmt->sBSSList[0]);
     for (ii = 0, jj = 0; ii < MAX_BSS_NUM ; ii++) {
diff --git a/drivers/staging/wlan-ng/p80211conv.c b/drivers/staging/wlan-ng/p80211conv.c
index 71c3595fe83..059e15055b7 100644
--- a/drivers/staging/wlan-ng/p80211conv.c
+++ b/drivers/staging/wlan-ng/p80211conv.c
@@ -601,7 +601,7 @@ int p80211skb_rxmeta_attach(struct wlandevice *wlandev, struct sk_buff *skb)
         }
 
         /* Allocate the rxmeta */
-        rxmeta = kmalloc(sizeof(p80211_rxmeta_t), GFP_ATOMIC);
+        rxmeta = kzalloc(sizeof(p80211_rxmeta_t), GFP_ATOMIC);
 
         if (rxmeta == NULL) {
                 printk(KERN_ERR "%s: Failed to allocate rxmeta.\n",
@@ -611,7 +611,6 @@ int p80211skb_rxmeta_attach(struct wlandevice *wlandev, struct sk_buff *skb)
         }
 
         /* Initialize the rxmeta */
-        memset(rxmeta, 0, sizeof(p80211_rxmeta_t));
         rxmeta->wlandev = wlandev;
         rxmeta->hosttime = jiffies;
 
diff --git a/drivers/staging/wlan-ng/prism2fw.c b/drivers/staging/wlan-ng/prism2fw.c
index fc2d8f40edd..d20c8797bcc 100644
--- a/drivers/staging/wlan-ng/prism2fw.c
+++ b/drivers/staging/wlan-ng/prism2fw.c
@@ -536,13 +536,12 @@ int mkimage(imgchunk_t *clist, unsigned int *ccnt)
 
         /* Allocate buffer space for chunks */
         for (i = 0; i < *ccnt; i++) {
-                clist[i].data = kmalloc(clist[i].len, GFP_KERNEL);
+                clist[i].data = kzalloc(clist[i].len, GFP_KERNEL);
                 if (clist[i].data == NULL) {
                         printk(KERN_ERR
                                "failed to allocate image space, exitting.\n");
                         return 1;
                 }
-                memset(clist[i].data, 0, clist[i].len);
                 pr_debug("chunk[%d]: addr=0x%06x len=%d\n",
                          i, clist[i].addr, clist[i].len);
         }