qcacld-3.0: Handle low memory cases for SAP 320 MHz bw upgrade

Currently, if host fails to get memory for SAP 320 MHz bandwidth
update messgae eWNI_SME_SAP_CH_WIDTH_UPDATE_RSP, it doesn't post
the message to SME and the command which caused the bandwidth
update is not removed from CSR queue. No other command can be
processed in such cases and leads to command timeout errors.
Post the message and handle it in SME even if it fails to get
memory. There could be functionality failures but system would
be functional.

Change-Id: I9e4c412441c9a9db02c7883dd4f64d7d2893a43d
CRs-Fixed: 3631557

core/mac/src/pe/lim/lim_process_sme_req_messages.c

@@ -8819,14 +8819,13 @@ lim_process_sap_ch_width_update(struct mac_context *mac_ctx,
 	return;
 
 fail:
-	param = qdf_mem_malloc(sizeof(*param));
-	if (!param)
-		return;
-
 	pe_err("vdev %d: send bandwidth update fail", vdev_id);
-	param->status = QDF_STATUS_E_FAILURE;
-	param->vdev_id = INVALID_VDEV_ID;
-	param->reason = REASON_CH_WIDTH_UPDATE;
+	param = qdf_mem_malloc(sizeof(*param));
+	if (param) {
+		param->status = QDF_STATUS_E_FAILURE;
+		param->vdev_id = INVALID_VDEV_ID;
+		param->reason = REASON_CH_WIDTH_UPDATE;
+	}
 	msg_return.type = eWNI_SME_SAP_CH_WIDTH_UPDATE_RSP;
 	msg_return.bodyptr = param;
 	msg_return.bodyval = 0;

core/mac/src/pe/lim/lim_send_sme_rsp_messages.c

@@ -2773,16 +2773,15 @@ void lim_nss_or_ch_width_update_rsp(struct mac_context *mac_ctx,
 	QDF_STATUS qdf_status = QDF_STATUS_E_INVAL;
 
 	rsp = qdf_mem_malloc(sizeof(*rsp));
-	if (!rsp)
-		return;
-
-	rsp->vdev_id = vdev_id;
-	rsp->status = status;
-	rsp->reason = reason;
+	if (rsp) {
+		rsp->vdev_id = vdev_id;
+		rsp->status = status;
+		rsp->reason = reason;
+	}
 
-	if (rsp->reason == REASON_NSS_UPDATE)
+	if (reason == REASON_NSS_UPDATE)
 		msg.type = eWNI_SME_NSS_UPDATE_RSP;
-	else if (rsp->reason == REASON_CH_WIDTH_UPDATE)
+	else if (reason == REASON_CH_WIDTH_UPDATE)
 		msg.type = eWNI_SME_SAP_CH_WIDTH_UPDATE_RSP;
 	else
 		goto done;

core/sme/src/common/sme_api.c

@@ -2679,6 +2679,7 @@ sme_process_sap_ch_width_update_rsp(struct mac_context *mac, uint8_t *msg)
 	enum policy_mgr_conn_update_reason reason;
 	uint32_t request_id;
 	uint8_t vdev_id;
+	QDF_STATUS status = QDF_STATUS_E_NOMEM;
 
 	param = (struct sir_bcn_update_rsp *)msg;
 	if (!param)
@@ -2710,8 +2711,10 @@ sme_process_sap_ch_width_update_rsp(struct mac_context *mac, uint8_t *msg)
 	reason = command->u.bw_update_cmd.reason;
 	request_id = command->u.bw_update_cmd.request_id;
 	vdev_id = command->u.bw_update_cmd.conc_vdev_id;
+	if (param)
+		status = param->status;
 	sme_debug("vdev %d reason %d status %d cm_id 0x%x",
-		  vdev_id, reason, param->status, request_id);
+		  vdev_id, reason, status, request_id);
 
 	if (reason == POLICY_MGR_UPDATE_REASON_CHANNEL_SWITCH_STA) {
 		sme_debug("Continue channel switch for STA on vdev %d",
@@ -2719,9 +2722,9 @@ sme_process_sap_ch_width_update_rsp(struct mac_context *mac, uint8_t *msg)
 		csr_sta_continue_csa(mac, vdev_id);
 	} else if (reason == POLICY_MGR_UPDATE_REASON_STA_CONNECT) {
 		sme_debug("Continue connect/reassoc on vdev %d reason %d status %d cm_id 0x%x",
-			  vdev_id, reason, param->status, request_id);
+			  vdev_id, reason, status, request_id);
 		wlan_cm_handle_hw_mode_change_resp(mac->pdev, vdev_id,
-						   request_id, param->status);
+						   request_id, status);
 	}
 
 	policy_mgr_set_connection_update(mac->psoc);

core/sme/src/csr/csr_api_roam.c

@@ -7719,14 +7719,13 @@ void csr_process_sap_ch_width_update(struct mac_context *mac, tSmeCmd *command)
 
 	sme_err("Posting to PE failed");
 fail:
-	param = qdf_mem_malloc(sizeof(*param));
-	if (!param)
-		return;
-
 	sme_err("Sending ch_width update fail response to SME");
-	param->status = QDF_STATUS_E_FAILURE;
-	param->vdev_id = command->u.bw_update_cmd.vdev_id;
-	param->reason = REASON_CH_WIDTH_UPDATE;
+	param = qdf_mem_malloc(sizeof(*param));
+	if (param) {
+		param->status = QDF_STATUS_E_FAILURE;
+		param->vdev_id = command->u.bw_update_cmd.vdev_id;
+		param->reason = REASON_CH_WIDTH_UPDATE;
+	}
 	msg_return.type = eWNI_SME_SAP_CH_WIDTH_UPDATE_RSP;
 	msg_return.bodyptr = param;
 	msg_return.bodyval = 0;