msm: ipa5: avoid NULL access in qmi_send_req_wait

Avoiding NULL ptr access in ipa3_qmi_send_req_wait function.

Change-Id: I24e9650acfc210868a759a4d964023eebfc9d2d2
Signed-off-by: Michael Adisumarta <madisuma@codeaurora.org>

drivers/platform/msm/ipa/ipa_v3/ipa_qmi_service.c

@@ -473,6 +473,8 @@ static int ipa3_qmi_send_req_wait(struct qmi_handle *client_handle,
 	struct qmi_txn txn;
 	int ret;
 
+	if (!client_handle)
+		return -EINVAL;
 	ret = qmi_txn_init(client_handle, &txn, resp_desc->ei_array, resp);
 
 	if (ret < 0) {