qcacld-3.0: Add NULL check for profile in roam sync

Add NULL check for roam profile in csr roam sync callback as the
the session current profile can be freed in disconnect process.

Change-Id: Ia127cb9fb7a6185c0a57a2c28d72fb234087c7c8
CRs-Fixed: 2739817

core/sme/src/csr/csr_api_roam.c

@@ -4042,6 +4042,14 @@ QDF_STATUS csr_roam_prepare_bss_config(struct mac_context *mac,
 	QDF_ASSERT(pIes);
 	if (!pIes)
 		return QDF_STATUS_E_FAILURE;
+	if (!pProfile) {
+		sme_debug("Profile is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+	if (!bss_desc) {
+		sme_debug("bss_desc is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
 
 	qdf_mem_copy(&pBssConfig->BssCap, &bss_desc->capabilityInfo,
 		     sizeof(tSirMacCapabilityInfo));
@@ -21861,8 +21869,11 @@ csr_process_roam_sync_callback(struct mac_context *mac_ctx,
 	}
 
 	conn_profile = &session->connectedProfile;
-	csr_roam_stop_network(mac_ctx, session_id, session->pCurRoamProfile,
-			      bss_desc, ies_local);
+	status = csr_roam_stop_network(mac_ctx, session_id,
+				       session->pCurRoamProfile,
+				       bss_desc, ies_local);
+	if (!QDF_IS_STATUS_SUCCESS(status))
+		goto end;
 	ps_global_info->remain_in_power_active_till_dhcp = false;
 	session->connectState = eCSR_ASSOC_STATE_TYPE_INFRA_ASSOCIATED;