qcacld-3.0: Update result for GETROAMSCANCHANNELS command

User can configure roam scan channels using SETROAMSCANCHANNELS and
ADDROAMSCANCHANNELS command.

As the result of GETROAMSCANCHANNELS command, driver returns the list
of channels configured by user.

Change-Id: I847215c8319f819f8db60690842ef50037fe6aaf
CRs-Fixed: 2610136

core/sme/src/common/sme_api.c

@@ -7503,7 +7503,7 @@ QDF_STATUS sme_get_roam_scan_channel_list(mac_handle_t mac_handle,
 	struct mac_context *mac = MAC_CONTEXT(mac_handle);
 	tpCsrNeighborRoamControlInfo pNeighborRoamInfo = NULL;
 	QDF_STATUS status = QDF_STATUS_SUCCESS;
-	tCsrChannelInfo *specific_chan_info;
+	tCsrChannelInfo *chan_info;
 
 	if (sessionId >= WLAN_MAX_VDEVS) {
 		QDF_TRACE(QDF_MODULE_ID_SME, QDF_TRACE_LEVEL_ERROR,
@@ -7515,18 +7515,21 @@ QDF_STATUS sme_get_roam_scan_channel_list(mac_handle_t mac_handle,
 	status = sme_acquire_global_lock(&mac->sme);
 	if (!QDF_IS_STATUS_SUCCESS(status))
 		return status;
-	specific_chan_info = &pNeighborRoamInfo->cfgParams.specific_chan_info;
-	if (!specific_chan_info->freq_list) {
-		QDF_TRACE(QDF_MODULE_ID_SME, QDF_TRACE_LEVEL_WARN,
-			FL("Roam Scan channel list is NOT yet initialized"));
-		*pNumChannels = 0;
-		sme_release_global_lock(&mac->sme);
-		return status;
+
+	chan_info = &pNeighborRoamInfo->cfgParams.specific_chan_info;
+	if (!chan_info->numOfChannels) {
+		chan_info = &pNeighborRoamInfo->cfgParams.pref_chan_info;
+		if (!chan_info->numOfChannels) {
+			sme_err("Roam Scan channel list is NOT yet initialized");
+			*pNumChannels = 0;
+			sme_release_global_lock(&mac->sme);
+			return status;
+		}
 	}
 
-	*pNumChannels = specific_chan_info->numOfChannels;
+	*pNumChannels = chan_info->numOfChannels;
 	for (i = 0; i < (*pNumChannels); i++)
-		freq_list[i] = specific_chan_info->freq_list[i];
+		freq_list[i] = chan_info->freq_list[i];
 	freq_list[i] = '\0';
 	sme_release_global_lock(&mac->sme);