[PATCH] s390: kzalloc() conversion in drivers/s390

Convert all kmalloc + memset sequences in drivers/s390 to kzalloc usage.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

8 files changed, 25 insertions, 53 deletions

diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index acd2a3f005f1..23d53bf9daf1 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -310,7 +310,7 @@ claw_probe(struct ccwgroup_device *cgdev)
         printk(KERN_INFO "claw: variable cgdev =\n");
         dumpit((char *)cgdev, sizeof(struct ccwgroup_device));
 #endif
-	privptr = kmalloc(sizeof(struct claw_privbk), GFP_KERNEL);
+	privptr = kzalloc(sizeof(struct claw_privbk), GFP_KERNEL);
 	if (privptr == NULL) {
 		probe_error(cgdev);
 		put_device(&cgdev->dev);
@@ -319,7 +319,6 @@ claw_probe(struct ccwgroup_device *cgdev)
 		CLAW_DBF_TEXT_(2,setup,"probex%d",-ENOMEM);
 		return -ENOMEM;
 	}
-	memset(privptr,0x00,sizeof(struct claw_privbk));
 	privptr->p_mtc_envelope= kmalloc( MAX_ENVELOPE_SIZE, GFP_KERNEL);
 	privptr->p_env = kmalloc(sizeof(struct claw_env), GFP_KERNEL);
         if ((privptr->p_mtc_envelope==NULL) || (privptr->p_env==NULL)) {
diff --git a/drivers/s390/net/fsm.c b/drivers/s390/net/fsm.c
index 6caf5fa6a3b5..7145e2134cf0 100644
--- a/drivers/s390/net/fsm.c
+++ b/drivers/s390/net/fsm.c
@@ -21,38 +21,34 @@ init_fsm(char *name, const char **state_names, const char **event_names, int nr_
 	fsm_function_t *m;
 	fsm *f;
 
-	this = (fsm_instance *)kmalloc(sizeof(fsm_instance), order);
+	this = kzalloc(sizeof(fsm_instance), order);
 	if (this == NULL) {
 		printk(KERN_WARNING
 			"fsm(%s): init_fsm: Couldn't alloc instance\n", name);
 		return NULL;
 	}
-	memset(this, 0, sizeof(fsm_instance));
 	strlcpy(this->name, name, sizeof(this->name));
 
-	f = (fsm *)kmalloc(sizeof(fsm), order);
+	f = kzalloc(sizeof(fsm), order);
 	if (f == NULL) {
 		printk(KERN_WARNING
 			"fsm(%s): init_fsm: Couldn't alloc fsm\n", name);
 		kfree_fsm(this);
 		return NULL;
 	}
-	memset(f, 0, sizeof(fsm));
 	f->nr_events = nr_events;
 	f->nr_states = nr_states;
 	f->event_names = event_names;
 	f->state_names = state_names;
 	this->f = f;
 
-	m = (fsm_function_t *)kmalloc(
-			sizeof(fsm_function_t) * nr_states * nr_events, order);
+	m = kcalloc(nr_states*nr_events, sizeof(fsm_function_t), order);
 	if (m == NULL) {
 		printk(KERN_WARNING
 			"fsm(%s): init_fsm: Couldn't alloc jumptable\n", name);
 		kfree_fsm(this);
 		return NULL;
 	}
-	memset(m, 0, sizeof(fsm_function_t) * f->nr_states * f->nr_events);
 	f->jumpmatrix = m;
 
 	for (i = 0; i < tmpl_len; i++) {
diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c
index 760e77ec5a11..6190be9dca99 100644
--- a/drivers/s390/net/iucv.c
+++ b/drivers/s390/net/iucv.c
@@ -386,7 +386,7 @@ iucv_init(void)
 	}
 
 	/* Note: GFP_DMA used used to get memory below 2G */
-	iucv_external_int_buffer = kmalloc(sizeof(iucv_GeneralInterrupt),
+	iucv_external_int_buffer = kzalloc(sizeof(iucv_GeneralInterrupt),
 					   GFP_KERNEL|GFP_DMA);
 	if (!iucv_external_int_buffer) {
 		printk(KERN_WARNING
@@ -396,10 +396,9 @@ iucv_init(void)
 		bus_unregister(&iucv_bus);
 		return -ENOMEM;
 	}
-	memset(iucv_external_int_buffer, 0, sizeof(iucv_GeneralInterrupt));
 
 	/* Initialize parameter pool */
-	iucv_param_pool = kmalloc(sizeof(iucv_param) * PARAM_POOL_SIZE,
+	iucv_param_pool = kzalloc(sizeof(iucv_param) * PARAM_POOL_SIZE,
 				  GFP_KERNEL|GFP_DMA);
 	if (!iucv_param_pool) {
 		printk(KERN_WARNING "%s: Could not allocate param pool\n",
@@ -410,7 +409,6 @@ iucv_init(void)
 		bus_unregister(&iucv_bus);
 		return -ENOMEM;
 	}
-	memset(iucv_param_pool, 0, sizeof(iucv_param) * PARAM_POOL_SIZE);
 
 	/* Initialize irq queue */
 	INIT_LIST_HEAD(&iucv_irq_queue);
@@ -793,15 +791,14 @@ iucv_register_program (__u8 pgmname[16],
 		}
 
 		max_connections = iucv_query_maxconn();
-		iucv_pathid_table = kmalloc(max_connections * sizeof(handler *),
-				       GFP_ATOMIC);
+		iucv_pathid_table = kcalloc(max_connections, sizeof(handler *),
+					GFP_ATOMIC);
 		if (iucv_pathid_table == NULL) {
 			printk(KERN_WARNING "%s: iucv_pathid_table storage "
 			       "allocation failed\n", __FUNCTION__);
 			kfree(new_handler);
 			return NULL;
 		}
-		memset (iucv_pathid_table, 0, max_connections * sizeof(handler *));
 	}
 	memset(new_handler, 0, sizeof (handler));
 	memcpy(new_handler->id.user_data, pgmname,
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 9cf88d7201d3..edcf05d5d568 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -115,11 +115,10 @@ lcs_alloc_channel(struct lcs_channel *channel)
 	LCS_DBF_TEXT(2, setup, "ichalloc");
 	for (cnt = 0; cnt < LCS_NUM_BUFFS; cnt++) {
 		/* alloc memory fo iobuffer */
-		channel->iob[cnt].data = (void *)
-			kmalloc(LCS_IOBUFFERSIZE, GFP_DMA | GFP_KERNEL);
+		channel->iob[cnt].data =
+			kzalloc(LCS_IOBUFFERSIZE, GFP_DMA | GFP_KERNEL);
 		if (channel->iob[cnt].data == NULL)
 			break;
-		memset(channel->iob[cnt].data, 0, LCS_IOBUFFERSIZE);
 		channel->iob[cnt].state = BUF_STATE_EMPTY;
 	}
 	if (cnt < LCS_NUM_BUFFS) {
@@ -182,10 +181,9 @@ lcs_alloc_card(void)
 
 	LCS_DBF_TEXT(2, setup, "alloclcs");
 
-	card = kmalloc(sizeof(struct lcs_card), GFP_KERNEL | GFP_DMA);
+	card = kzalloc(sizeof(struct lcs_card), GFP_KERNEL | GFP_DMA);
 	if (card == NULL)
 		return NULL;
-	memset(card, 0, sizeof(struct lcs_card));
 	card->lan_type = LCS_FRAME_TYPE_AUTO;
 	card->pkt_seq = 0;
 	card->lancmd_timeout = LCS_LANCMD_TIMEOUT_DEFAULT;
@@ -793,10 +791,9 @@ lcs_alloc_reply(struct lcs_cmd *cmd)
 
 	LCS_DBF_TEXT(4, trace, "getreply");
 
-	reply = kmalloc(sizeof(struct lcs_reply), GFP_ATOMIC);
+	reply = kzalloc(sizeof(struct lcs_reply), GFP_ATOMIC);
 	if (!reply)
 		return NULL;
-	memset(reply,0,sizeof(struct lcs_reply));
 	atomic_set(&reply->refcnt,1);
 	reply->sequence_no = cmd->sequence_no;
 	reply->received = 0;
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 71d3853e8682..260a93c8c442 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1728,14 +1728,13 @@ static int
 netiucv_register_device(struct net_device *ndev)
 {
 	struct netiucv_priv *priv = ndev->priv;
-	struct device *dev = kmalloc(sizeof(struct device), GFP_KERNEL);
+	struct device *dev = kzalloc(sizeof(struct device), GFP_KERNEL);
 	int ret;
 
 
 	IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
 
 	if (dev) {
-		memset(dev, 0, sizeof(struct device));
 		snprintf(dev->bus_id, BUS_ID_SIZE, "net%s", ndev->name);
 		dev->bus = &iucv_bus;
 		dev->parent = iucv_root;
@@ -1784,11 +1783,9 @@ netiucv_new_connection(struct net_device *dev, char *username)
 {
 	struct iucv_connection **clist = &iucv_connections;
 	struct iucv_connection *conn =
-		(struct iucv_connection *)
-		kmalloc(sizeof(struct iucv_connection), GFP_KERNEL);
+		kzalloc(sizeof(struct iucv_connection), GFP_KERNEL);
 
 	if (conn) {
-		memset(conn, 0, sizeof(struct iucv_connection));
 		skb_queue_head_init(&conn->collect_queue);
 		skb_queue_head_init(&conn->commit_queue);
 		conn->max_buffsize = NETIUCV_BUFSIZE_DEFAULT;
diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c
index 82cb4af2f0e7..44e226f211e7 100644
--- a/drivers/s390/net/qeth_eddp.c
+++ b/drivers/s390/net/qeth_eddp.c
@@ -389,9 +389,8 @@ qeth_eddp_create_eddp_data(struct qeth_hdr *qh, u8 *nh, u8 nhl, u8 *th, u8 thl)
 	struct qeth_eddp_data *eddp;
 
 	QETH_DBF_TEXT(trace, 5, "eddpcrda");
-	eddp = kmalloc(sizeof(struct qeth_eddp_data), GFP_ATOMIC);
+	eddp = kzalloc(sizeof(struct qeth_eddp_data), GFP_ATOMIC);
 	if (eddp){
-		memset(eddp, 0, sizeof(struct qeth_eddp_data));
 		eddp->nhl = nhl;
 		eddp->thl = thl;
 		memcpy(&eddp->qh, qh, sizeof(struct qeth_hdr));
@@ -542,12 +541,11 @@ qeth_eddp_create_context_generic(struct qeth_card *card, struct sk_buff *skb,
 
 	QETH_DBF_TEXT(trace, 5, "creddpcg");
 	/* create the context and allocate pages */
-	ctx = kmalloc(sizeof(struct qeth_eddp_context), GFP_ATOMIC);
+	ctx = kzalloc(sizeof(struct qeth_eddp_context), GFP_ATOMIC);
 	if (ctx == NULL){
 		QETH_DBF_TEXT(trace, 2, "ceddpcn1");
 		return NULL;
 	}
-	memset(ctx, 0, sizeof(struct qeth_eddp_context));
 	ctx->type = QETH_LARGE_SEND_EDDP;
 	qeth_eddp_calc_num_pages(ctx, skb, hdr_len);
 	if (ctx->elements_per_skb > QETH_MAX_BUFFER_ELEMENTS(card)){
@@ -555,13 +553,12 @@ qeth_eddp_create_context_generic(struct qeth_card *card, struct sk_buff *skb,
 		kfree(ctx);
 		return NULL;
 	}
-	ctx->pages = kmalloc(ctx->num_pages * sizeof(u8 *), GFP_ATOMIC);
+	ctx->pages = kcalloc(ctx->num_pages, sizeof(u8 *), GFP_ATOMIC);
 	if (ctx->pages == NULL){
 		QETH_DBF_TEXT(trace, 2, "ceddpcn2");
 		kfree(ctx);
 		return NULL;
 	}
-	memset(ctx->pages, 0, ctx->num_pages * sizeof(u8 *));
 	for (i = 0; i < ctx->num_pages; ++i){
 		addr = (u8 *)__get_free_page(GFP_ATOMIC);
 		if (addr == NULL){
@@ -573,15 +570,13 @@ qeth_eddp_create_context_generic(struct qeth_card *card, struct sk_buff *skb,
 		memset(addr, 0, PAGE_SIZE);
 		ctx->pages[i] = addr;
 	}
-	ctx->elements = kmalloc(ctx->num_elements *
+	ctx->elements = kcalloc(ctx->num_elements,
 				sizeof(struct qeth_eddp_element), GFP_ATOMIC);
 	if (ctx->elements == NULL){
 		QETH_DBF_TEXT(trace, 2, "ceddpcn4");
 		qeth_eddp_free_context(ctx);
 		return NULL;
 	}
-	memset(ctx->elements, 0,
-	       ctx->num_elements * sizeof(struct qeth_eddp_element));
 	/* reset num_elements; will be incremented again in fill_buffer to
 	 * reflect number of actually used elements */
 	ctx->num_elements = 0;
diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c
index 021cd5d08c61..b3c6e7907790 100644
--- a/drivers/s390/net/qeth_main.c
+++ b/drivers/s390/net/qeth_main.c
@@ -297,12 +297,10 @@ qeth_alloc_card(void)
 	struct qeth_card *card;
 
 	QETH_DBF_TEXT(setup, 2, "alloccrd");
-	card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
-					    GFP_DMA|GFP_KERNEL);
+	card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
 	if (!card)
 		return NULL;
 	QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
-	memset(card, 0, sizeof(struct qeth_card));
 	if (qeth_setup_channel(&card->read)) {
 		kfree(card);
 		return NULL;
@@ -1632,9 +1630,8 @@ qeth_alloc_reply(struct qeth_card *card)
 {
 	struct qeth_reply *reply;
 
-	reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
+	reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
 	if (reply){
-		memset(reply, 0, sizeof(struct qeth_reply));
 		atomic_set(&reply->refcnt, 1);
 		reply->card = card;
 	};
@@ -3348,13 +3345,11 @@ qeth_qdio_establish(struct qeth_card *card)
 
 	QETH_DBF_TEXT(setup, 2, "qdioest");
 
-	qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
+	qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
 			      GFP_KERNEL);
  	if (!qib_param_field)
 		return -ENOMEM;
 
- 	memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
-
 	qeth_create_qib_param_field(card, qib_param_field);
 	qeth_create_qib_param_field_blkt(card, qib_param_field);
 
@@ -4819,9 +4814,8 @@ qeth_arp_query(struct qeth_card *card, char *udata)
 	/* get size of userspace buffer and mask_bits -> 6 bytes */
 	if (copy_from_user(&qinfo, udata, 6))
 		return -EFAULT;
-	if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
+	if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
 		return -ENOMEM;
-	memset(qinfo.udata, 0, qinfo.udata_len);
 	qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
 	iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
 				       IPA_CMD_ASS_ARP_QUERY_INFO,
@@ -4969,11 +4963,10 @@ qeth_snmp_command(struct qeth_card *card, char *udata)
 		return -EFAULT;
 	}
 	qinfo.udata_len = ureq->hdr.data_len;
-	if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
+	if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
 		kfree(ureq);
 		return -ENOMEM;
 	}
-	memset(qinfo.udata, 0, qinfo.udata_len);
 	qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
 
 	iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
@@ -5564,12 +5557,11 @@ qeth_get_addr_buffer(enum qeth_prot_versions prot)
 {
 	struct qeth_ipaddr *addr;
 
-	addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
+	addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
 	if (addr == NULL) {
 		PRINT_WARN("Not enough memory to add address\n");
 		return NULL;
 	}
-	memset(addr,0,sizeof(struct qeth_ipaddr));
 	addr->type = QETH_IP_TYPE_NORMAL;
 	addr->proto = prot;
 	return addr;
diff --git a/drivers/s390/net/qeth_sys.c b/drivers/s390/net/qeth_sys.c
index f2a076a2b2f1..882d419e4160 100644
--- a/drivers/s390/net/qeth_sys.c
+++ b/drivers/s390/net/qeth_sys.c
@@ -1145,11 +1145,10 @@ qeth_dev_ipato_add_store(const char *buf, size_t count,
 	if ((rc = qeth_parse_ipatoe(buf, proto, addr, &mask_bits)))
 		return rc;
 
-	if (!(ipatoe = kmalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL))){
+	if (!(ipatoe = kzalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL))){
 		PRINT_WARN("No memory to allocate ipato entry\n");
 		return -ENOMEM;
 	}
-	memset(ipatoe, 0, sizeof(struct qeth_ipato_entry));
 	ipatoe->proto = proto;
 	memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16);
 	ipatoe->mask_bits = mask_bits;