selftests: nci: Fix the wrong condition

memcpy should be executed only in case nla_len's value is greater than 0.
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/nci/nci_dev.c

@@ -110,7 +110,7 @@ static int send_cmd_mt_nla(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
 		na->nla_type = nla_type[cnt];
 		na->nla_len = nla_len[cnt] + NLA_HDRLEN;
 
-		if (nla_len > 0)
+		if (nla_len[cnt] > 0)
 			memcpy(NLA_DATA(na), nla_data[cnt], nla_len[cnt]);
 
 		prv_len = NLA_ALIGN(nla_len[cnt]) + NLA_HDRLEN;