[SUNRPC]: Use k{mem,str}dup where applicable

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>

net/sunrpc/auth_gss/auth_gss.c

@@ -198,11 +198,10 @@ simple_get_netobj(const void *p, const void *end, struct xdr_netobj *dest)
 	q = (const void *)((const char *)p + len);
 	if (unlikely(q > end || q < p))
 		return ERR_PTR(-EFAULT);
-	dest->data = kmalloc(len, GFP_KERNEL);
+	dest->data = kmemdup(p, len, GFP_KERNEL);
 	if (unlikely(dest->data == NULL))
 		return ERR_PTR(-ENOMEM);
 	dest->len = len;
-	memcpy(dest->data, p, len);
 	return q;
 }
 

net/sunrpc/auth_gss/gss_krb5_mech.c

@@ -70,10 +70,9 @@ simple_get_netobj(const void *p, const void *end, struct xdr_netobj *res)
 	q = (const void *)((const char *)p + len);
 	if (unlikely(q > end || q < p))
 		return ERR_PTR(-EFAULT);
-	res->data = kmalloc(len, GFP_KERNEL);
+	res->data = kmemdup(p, len, GFP_KERNEL);
 	if (unlikely(res->data == NULL))
 		return ERR_PTR(-ENOMEM);
-	memcpy(res->data, p, len);
 	res->len = len;
 	return q;
 }

net/sunrpc/auth_gss/gss_spkm3_mech.c

@@ -76,10 +76,9 @@ simple_get_netobj(const void *p, const void *end, struct xdr_netobj *res)
 	q = (const void *)((const char *)p + len);
 	if (unlikely(q > end || q < p))
 		return ERR_PTR(-EFAULT);
-	res->data = kmalloc(len, GFP_KERNEL);
+	res->data = kmemdup(p, len, GFP_KERNEL);
 	if (unlikely(res->data == NULL))
 		return ERR_PTR(-ENOMEM);
-	memcpy(res->data, p, len);
 	return q;
 }
 

net/sunrpc/auth_gss/svcauth_gss.c

@@ -113,9 +113,7 @@ static int rsi_match(struct cache_head *a, struct cache_head *b)
 static int dup_to_netobj(struct xdr_netobj *dst, char *src, int len)
 {
 	dst->len = len;
-	dst->data = (len ? kmalloc(len, GFP_KERNEL) : NULL);
-	if (dst->data)
-		memcpy(dst->data, src, len);
+	dst->data = (len ? kmemdup(src, len, GFP_KERNEL) : NULL);
 	if (len && !dst->data)
 		return -ENOMEM;
 	return 0;
@@ -756,10 +754,9 @@ svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name)
 	if (!new)
 		goto out;
 	kref_init(&new->h.ref);
-	new->h.name = kmalloc(strlen(name) + 1, GFP_KERNEL);
+	new->h.name = kstrdup(name, GFP_KERNEL);
 	if (!new->h.name)
 		goto out_free_dom;
-	strcpy(new->h.name, name);
 	new->h.flavour = &svcauthops_gss;
 	new->pseudoflavor = pseudoflavor;
 

net/sunrpc/clnt.c

@@ -253,10 +253,9 @@ rpc_clone_client(struct rpc_clnt *clnt)
 {
 	struct rpc_clnt *new;
 
-	new = kmalloc(sizeof(*new), GFP_KERNEL);
+	new = kmemdup(clnt, sizeof(*new), GFP_KERNEL);
 	if (!new)
 		goto out_no_clnt;
-	memcpy(new, clnt, sizeof(*new));
 	atomic_set(&new->cl_count, 1);
 	atomic_set(&new->cl_users, 0);
 	new->cl_parent = clnt;