NFSD: Pass correct buffer size to rpc_ntop

I honestly have no idea where I got 129 from, but it's a much bigger
value than the actual buffer size (INET6_ADDRSTRLEN).
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/fault_inject.c

@@ -79,7 +79,7 @@ static void nfsd_inject_set_client(struct nfsd_fault_inject_op *op,
 	clp = nfsd_find_client(addr, addr_size);
 	if (clp) {
 		count = op->forget(clp, 0);
-		rpc_ntop((struct sockaddr *)&clp->cl_addr, buf, 129);
+		rpc_ntop((struct sockaddr *)&clp->cl_addr, buf, sizeof(buf));
 		printk(KERN_INFO "NFSD [%s]: Client %s had %llu state object(s)\n", op->file, buf, count);
 	}
 	nfs4_unlock_state();

fs/nfsd/nfs4state.c

@@ -4623,7 +4623,7 @@ u64 nfsd_forget_client(struct nfs4_client *clp, u64 max)
 u64 nfsd_print_client(struct nfs4_client *clp, u64 num)
 {
 	char buf[INET6_ADDRSTRLEN];
-	rpc_ntop((struct sockaddr *)&clp->cl_addr, buf, 129);
+	rpc_ntop((struct sockaddr *)&clp->cl_addr, buf, sizeof(buf));
 	printk(KERN_INFO "NFS Client: %s\n", buf);
 	return 1;
 }
@@ -4632,7 +4632,7 @@ static void nfsd_print_count(struct nfs4_client *clp, unsigned int count,
 			     const char *type)
 {
 	char buf[INET6_ADDRSTRLEN];
-	rpc_ntop((struct sockaddr *)&clp->cl_addr, buf, 129);
+	rpc_ntop((struct sockaddr *)&clp->cl_addr, buf, sizeof(buf));
 	printk(KERN_INFO "NFS Client: %s has %u %s\n", buf, count, type);
 }