[NET]: Conversions from kmalloc+memset to k(z|c)alloc.

Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

17 files changed, 33 insertions, 66 deletions

diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 9affeee..a2587b5 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -312,10 +312,9 @@ struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est,
 	}
 
 	*err = -ENOMEM;
-	a = kmalloc(sizeof(*a), GFP_KERNEL);
+	a = kzalloc(sizeof(*a), GFP_KERNEL);
 	if (a == NULL)
 		goto err_mod;
-	memset(a, 0, sizeof(*a));
 
 	/* backward compatibility for policer */
 	if (name == NULL)
@@ -492,10 +491,9 @@ tcf_action_get_1(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int *err)
 	index = *(int *)RTA_DATA(tb[TCA_ACT_INDEX - 1]);
 
 	*err = -ENOMEM;
-	a = kmalloc(sizeof(struct tc_action), GFP_KERNEL);
+	a = kzalloc(sizeof(struct tc_action), GFP_KERNEL);
 	if (a == NULL)
 		return NULL;
-	memset(a, 0, sizeof(struct tc_action));
 
 	*err = -EINVAL;
 	a->ops = tc_lookup_action(tb[TCA_ACT_KIND - 1]);
@@ -531,12 +529,11 @@ static struct tc_action *create_a(int i)
 {
 	struct tc_action *act;
 
-	act = kmalloc(sizeof(*act), GFP_KERNEL);
+	act = kzalloc(sizeof(*act), GFP_KERNEL);
 	if (act == NULL) {
 		printk("create_a: failed to alloc!\n");
 		return NULL;
 	}
-	memset(act, 0, sizeof(*act));
 	act->order = i;
 	return act;
 }
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 58b3a86..f257475 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -209,10 +209,9 @@ tcf_pedit_dump(struct sk_buff *skb, struct tc_action *a,int bind, int ref)
 	s = sizeof(*opt) + p->nkeys * sizeof(struct tc_pedit_key);
 
 	/* netlink spinlocks held above us - must use ATOMIC */
-	opt = kmalloc(s, GFP_ATOMIC);
+	opt = kzalloc(s, GFP_ATOMIC);
 	if (opt == NULL)
 		return -ENOBUFS;
-	memset(opt, 0, s);
 
 	memcpy(opt->keys, p->keys, p->nkeys * sizeof(struct tc_pedit_key));
 	opt->index = p->index;
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 47e00bd..da905d7 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -196,10 +196,9 @@ static int tcf_act_police_locate(struct rtattr *rta, struct rtattr *est,
 		return ret;
 	}
 
-	p = kmalloc(sizeof(*p), GFP_KERNEL);
+	p = kzalloc(sizeof(*p), GFP_KERNEL);
 	if (p == NULL)
 		return -ENOMEM;
-	memset(p, 0, sizeof(*p));
 
 	ret = ACT_P_CREATED;
 	p->refcnt = 1;
@@ -429,11 +428,10 @@ struct tcf_police * tcf_police_locate(struct rtattr *rta, struct rtattr *est)
 		return p;
 	}
 
-	p = kmalloc(sizeof(*p), GFP_KERNEL);
+	p = kzalloc(sizeof(*p), GFP_KERNEL);
 	if (p == NULL)
 		return NULL;
 
-	memset(p, 0, sizeof(*p));
 	p->refcnt = 1;
 	spin_lock_init(&p->lock);
 	p->stats_lock = &p->lock;
diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index 61507f0..86cac49 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -178,19 +178,17 @@ static int basic_change(struct tcf_proto *tp, unsigned long base, u32 handle,
 
 	err = -ENOBUFS;
 	if (head == NULL) {
-		head = kmalloc(sizeof(*head), GFP_KERNEL);
+		head = kzalloc(sizeof(*head), GFP_KERNEL);
 		if (head == NULL)
 			goto errout;
 
-		memset(head, 0, sizeof(*head));
 		INIT_LIST_HEAD(&head->flist);
 		tp->root = head;
 	}
 
-	f = kmalloc(sizeof(*f), GFP_KERNEL);
+	f = kzalloc(sizeof(*f), GFP_KERNEL);
 	if (f == NULL)
 		goto errout;
-	memset(f, 0, sizeof(*f));
 
 	err = -EINVAL;
 	if (handle)
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index d41de91..e6973d9 100644
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -267,20 +267,18 @@ static int fw_change(struct tcf_proto *tp, unsigned long base,
 		return -EINVAL;
 
 	if (head == NULL) {
-		head = kmalloc(sizeof(struct fw_head), GFP_KERNEL);
+		head = kzalloc(sizeof(struct fw_head), GFP_KERNEL);
 		if (head == NULL)
 			return -ENOBUFS;
-		memset(head, 0, sizeof(*head));
 
 		tcf_tree_lock(tp);
 		tp->root = head;
 		tcf_tree_unlock(tp);
 	}
 
-	f = kmalloc(sizeof(struct fw_filter), GFP_KERNEL);
+	f = kzalloc(sizeof(struct fw_filter), GFP_KERNEL);
 	if (f == NULL)
 		return -ENOBUFS;
-	memset(f, 0, sizeof(*f));
 
 	f->id = handle;
 
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index c2e7190..d3aea73 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -396,10 +396,9 @@ static int route4_set_parms(struct tcf_proto *tp, unsigned long base,
 	h1 = to_hash(nhandle);
 	if ((b = head->table[h1]) == NULL) {
 		err = -ENOBUFS;
-		b = kmalloc(sizeof(struct route4_bucket), GFP_KERNEL);
+		b = kzalloc(sizeof(struct route4_bucket), GFP_KERNEL);
 		if (b == NULL)
 			goto errout;
-		memset(b, 0, sizeof(*b));
 
 		tcf_tree_lock(tp);
 		head->table[h1] = b;
@@ -475,20 +474,18 @@ static int route4_change(struct tcf_proto *tp, unsigned long base,
 
 	err = -ENOBUFS;
 	if (head == NULL) {
-		head = kmalloc(sizeof(struct route4_head), GFP_KERNEL);
+		head = kzalloc(sizeof(struct route4_head), GFP_KERNEL);
 		if (head == NULL)
 			goto errout;
-		memset(head, 0, sizeof(struct route4_head));
 
 		tcf_tree_lock(tp);
 		tp->root = head;
 		tcf_tree_unlock(tp);
 	}
 
-	f = kmalloc(sizeof(struct route4_filter), GFP_KERNEL);
+	f = kzalloc(sizeof(struct route4_filter), GFP_KERNEL);
 	if (f == NULL)
 		goto errout;
-	memset(f, 0, sizeof(*f));
 
 	err = route4_set_parms(tp, base, f, handle, head, tb,
 		tca[TCA_RATE-1], 1);
diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h
index ba87419..6e230ec 100644
--- a/net/sched/cls_rsvp.h
+++ b/net/sched/cls_rsvp.h
@@ -240,9 +240,8 @@ static int rsvp_init(struct tcf_proto *tp)
 {
 	struct rsvp_head *data;
 
-	data = kmalloc(sizeof(struct rsvp_head), GFP_KERNEL);
+	data = kzalloc(sizeof(struct rsvp_head), GFP_KERNEL);
 	if (data) {
-		memset(data, 0, sizeof(struct rsvp_head));
 		tp->root = data;
 		return 0;
 	}
@@ -446,11 +445,10 @@ static int rsvp_change(struct tcf_proto *tp, unsigned long base,
 		goto errout2;
 
 	err = -ENOBUFS;
-	f = kmalloc(sizeof(struct rsvp_filter), GFP_KERNEL);
+	f = kzalloc(sizeof(struct rsvp_filter), GFP_KERNEL);
 	if (f == NULL)
 		goto errout2;
 
-	memset(f, 0, sizeof(*f));
 	h2 = 16;
 	if (tb[TCA_RSVP_SRC-1]) {
 		err = -EINVAL;
@@ -532,10 +530,9 @@ insert:
 	/* No session found. Create new one. */
 
 	err = -ENOBUFS;
-	s = kmalloc(sizeof(struct rsvp_session), GFP_KERNEL);
+	s = kzalloc(sizeof(struct rsvp_session), GFP_KERNEL);
 	if (s == NULL)
 		goto errout;
-	memset(s, 0, sizeof(*s));
 	memcpy(s->dst, dst, sizeof(s->dst));
 
 	if (pinfo) {
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
index 7870e7b..5af8a59e 100644
--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -148,11 +148,10 @@ static int tcindex_init(struct tcf_proto *tp)
 	struct tcindex_data *p;
 
 	DPRINTK("tcindex_init(tp %p)\n",tp);
-	p = kmalloc(sizeof(struct tcindex_data),GFP_KERNEL);
+	p = kzalloc(sizeof(struct tcindex_data),GFP_KERNEL);
 	if (!p)
 		return -ENOMEM;
 
-	memset(p, 0, sizeof(*p));
 	p->mask = 0xffff;
 	p->hash = DEFAULT_HASH_SIZE;
 	p->fall_through = 1;
@@ -296,16 +295,14 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle,
 	err = -ENOMEM;
 	if (!cp.perfect && !cp.h) {
 		if (valid_perfect_hash(&cp)) {
-			cp.perfect = kmalloc(cp.hash * sizeof(*r), GFP_KERNEL);
+			cp.perfect = kcalloc(cp.hash, sizeof(*r), GFP_KERNEL);
 			if (!cp.perfect)
 				goto errout;
-			memset(cp.perfect, 0, cp.hash * sizeof(*r));
 			balloc = 1;
 		} else {
-			cp.h = kmalloc(cp.hash * sizeof(f), GFP_KERNEL);
+			cp.h = kcalloc(cp.hash, sizeof(f), GFP_KERNEL);
 			if (!cp.h)
 				goto errout;
-			memset(cp.h, 0, cp.hash * sizeof(f));
 			balloc = 2;
 		}
 	}
@@ -316,10 +313,9 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle,
 		r = tcindex_lookup(&cp, handle) ? : &new_filter_result;
 
 	if (r == &new_filter_result) {
-		f = kmalloc(sizeof(*f), GFP_KERNEL);
+		f = kzalloc(sizeof(*f), GFP_KERNEL);
 		if (!f)
 			goto errout_alloc;
-		memset(f, 0, sizeof(*f));
  	}
 
 	if (tb[TCA_TCINDEX_CLASSID-1]) {
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index d712edc..eea3669 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -307,23 +307,21 @@ static int u32_init(struct tcf_proto *tp)
 		if (tp_c->q == tp->q)
 			break;
 
-	root_ht = kmalloc(sizeof(*root_ht), GFP_KERNEL);
+	root_ht = kzalloc(sizeof(*root_ht), GFP_KERNEL);
 	if (root_ht == NULL)
 		return -ENOBUFS;
 
-	memset(root_ht, 0, sizeof(*root_ht));
 	root_ht->divisor = 0;
 	root_ht->refcnt++;
 	root_ht->handle = tp_c ? gen_new_htid(tp_c) : 0x80000000;
 	root_ht->prio = tp->prio;
 
 	if (tp_c == NULL) {
-		tp_c = kmalloc(sizeof(*tp_c), GFP_KERNEL);
+		tp_c = kzalloc(sizeof(*tp_c), GFP_KERNEL);
 		if (tp_c == NULL) {
 			kfree(root_ht);
 			return -ENOBUFS;
 		}
-		memset(tp_c, 0, sizeof(*tp_c));
 		tp_c->q = tp->q;
 		tp_c->next = u32_list;
 		u32_list = tp_c;
@@ -571,10 +569,9 @@ static int u32_change(struct tcf_proto *tp, unsigned long base, u32 handle,
 			if (handle == 0)
 				return -ENOMEM;
 		}
-		ht = kmalloc(sizeof(*ht) + divisor*sizeof(void*), GFP_KERNEL);
+		ht = kzalloc(sizeof(*ht) + divisor*sizeof(void*), GFP_KERNEL);
 		if (ht == NULL)
 			return -ENOBUFS;
-		memset(ht, 0, sizeof(*ht) + divisor*sizeof(void*));
 		ht->tp_c = tp_c;
 		ht->refcnt = 0;
 		ht->divisor = divisor;
@@ -617,18 +614,16 @@ static int u32_change(struct tcf_proto *tp, unsigned long base, u32 handle,
 
 	s = RTA_DATA(tb[TCA_U32_SEL-1]);
 
-	n = kmalloc(sizeof(*n) + s->nkeys*sizeof(struct tc_u32_key), GFP_KERNEL);
+	n = kzalloc(sizeof(*n) + s->nkeys*sizeof(struct tc_u32_key), GFP_KERNEL);
 	if (n == NULL)
 		return -ENOBUFS;
 
-	memset(n, 0, sizeof(*n) + s->nkeys*sizeof(struct tc_u32_key));
 #ifdef CONFIG_CLS_U32_PERF
-	n->pf = kmalloc(sizeof(struct tc_u32_pcnt) + s->nkeys*sizeof(u64), GFP_KERNEL);
+	n->pf = kzalloc(sizeof(struct tc_u32_pcnt) + s->nkeys*sizeof(u64), GFP_KERNEL);
 	if (n->pf == NULL) {
 		kfree(n);
 		return -ENOBUFS;
 	}
-	memset(n->pf, 0, sizeof(struct tc_u32_pcnt) + s->nkeys*sizeof(u64));
 #endif
 
 	memcpy(&n->sel, s, sizeof(*s) + s->nkeys*sizeof(struct tc_u32_key));
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index 6983729..61e3b74 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -773,10 +773,9 @@ static int em_meta_change(struct tcf_proto *tp, void *data, int len,
 	    TCF_META_ID(hdr->right.kind) > TCF_META_ID_MAX)
 		goto errout;
 
-	meta = kmalloc(sizeof(*meta), GFP_KERNEL);
+	meta = kzalloc(sizeof(*meta), GFP_KERNEL);
 	if (meta == NULL)
 		goto errout;
-	memset(meta, 0, sizeof(*meta));
 
 	memcpy(&meta->lvalue.hdr, &hdr->left, sizeof(hdr->left));
 	memcpy(&meta->rvalue.hdr, &hdr->right, sizeof(hdr->right));
diff --git a/net/sched/ematch.c b/net/sched/ematch.c
index 2405a86..0fd0768 100644
--- a/net/sched/ematch.c
+++ b/net/sched/ematch.c
@@ -321,10 +321,9 @@ int tcf_em_tree_validate(struct tcf_proto *tp, struct rtattr *rta,
 	list_len = RTA_PAYLOAD(rt_list);
 	matches_len = tree_hdr->nmatches * sizeof(*em);
 
-	tree->matches = kmalloc(matches_len, GFP_KERNEL);
+	tree->matches = kzalloc(matches_len, GFP_KERNEL);
 	if (tree->matches == NULL)
 		goto errout;
-	memset(tree->matches, 0, matches_len);
 
 	/* We do not use rtattr_parse_nested here because the maximum
 	 * number of attributes is unknown. This saves us the allocation
diff --git a/net/sched/estimator.c b/net/sched/estimator.c
index 5d3ae03..0ebc98e 100644
--- a/net/sched/estimator.c
+++ b/net/sched/estimator.c
@@ -139,11 +139,10 @@ int qdisc_new_estimator(struct tc_stats *stats, spinlock_t *stats_lock, struct r
 	if (parm->interval < -2 || parm->interval > 3)
 		return -EINVAL;
 
-	est = kmalloc(sizeof(*est), GFP_KERNEL);
+	est = kzalloc(sizeof(*est), GFP_KERNEL);
 	if (est == NULL)
 		return -ENOBUFS;
 
-	memset(est, 0, sizeof(*est));
 	est->interval = parm->interval + 2;
 	est->stats = stats;
 	est->stats_lock = stats_lock;
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 80b7f6a..bac881b 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1926,10 +1926,9 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
 	}
 
 	err = -ENOBUFS;
-	cl = kmalloc(sizeof(*cl), GFP_KERNEL);
+	cl = kzalloc(sizeof(*cl), GFP_KERNEL);
 	if (cl == NULL)
 		goto failure;
-	memset(cl, 0, sizeof(*cl));
 	cl->R_tab = rtab;
 	rtab = NULL;
 	cl->refcnt = 1;
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index d735f51..0834c2e 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -432,10 +432,9 @@ struct Qdisc *qdisc_alloc(struct net_device *dev, struct Qdisc_ops *ops)
 	size = QDISC_ALIGN(sizeof(*sch));
 	size += ops->priv_size + (QDISC_ALIGNTO - 1);
 
-	p = kmalloc(size, GFP_KERNEL);
+	p = kzalloc(size, GFP_KERNEL);
 	if (!p)
 		goto errout;
-	memset(p, 0, size);
 	sch = (struct Qdisc *) QDISC_ALIGN((unsigned long) p);
 	sch->padded = (char *) sch - (char *) p;
 
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c
index 0cafdd5..18e81a8 100644
--- a/net/sched/sch_gred.c
+++ b/net/sched/sch_gred.c
@@ -406,10 +406,9 @@ static inline int gred_change_vq(struct Qdisc *sch, int dp,
 	struct gred_sched_data *q;
 
 	if (table->tab[dp] == NULL) {
-		table->tab[dp] = kmalloc(sizeof(*q), GFP_KERNEL);
+		table->tab[dp] = kzalloc(sizeof(*q), GFP_KERNEL);
 		if (table->tab[dp] == NULL)
 			return -ENOMEM;
-		memset(table->tab[dp], 0, sizeof(*q));
 	}
 
 	q = table->tab[dp];
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 6b1b4a9..6a6735a 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1123,10 +1123,9 @@ hfsc_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 	if (rsc == NULL && fsc == NULL)
 		return -EINVAL;
 
-	cl = kmalloc(sizeof(struct hfsc_class), GFP_KERNEL);
+	cl = kzalloc(sizeof(struct hfsc_class), GFP_KERNEL);
 	if (cl == NULL)
 		return -ENOBUFS;
-	memset(cl, 0, sizeof(struct hfsc_class));
 
 	if (rsc != NULL)
 		hfsc_change_rsc(cl, rsc, 0);
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index cc5f339..880a339 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1559,10 +1559,9 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 			goto failure;
 		}
 		err = -ENOBUFS;
-		if ((cl = kmalloc(sizeof(*cl), GFP_KERNEL)) == NULL)
+		if ((cl = kzalloc(sizeof(*cl), GFP_KERNEL)) == NULL)
 			goto failure;
 		
-		memset(cl, 0, sizeof(*cl));
 		cl->refcnt = 1;
 		INIT_LIST_HEAD(&cl->sibling);
 		INIT_LIST_HEAD(&cl->hlist);