Coverity 5.1 Fixes (#2854)

* Coverity 5.1 Fixes

- Check return values
- Pass struct by reference
- Cast value to match return type

* Coverity: Unchecked dynamic cast

* Fix missing not typo

* Address comments

* Address comment

2 files changed, 5 insertions, 1 deletions

diff --git a/src/components/transport_manager/src/cloud/cloud_device.cc b/src/components/transport_manager/src/cloud/cloud_device.cc
index 184fcc10cc..35510f4cf8 100644
--- a/src/components/transport_manager/src/cloud/cloud_device.cc
+++ b/src/components/transport_manager/src/cloud/cloud_device.cc
@@ -50,6 +50,10 @@ bool CloudDevice::IsSameAs(const Device* other) const {
   const CloudDevice* other_cloud_device =
       dynamic_cast<const CloudDevice*>(other);
 
+  if (!other_cloud_device) {
+    return false;
+  }
+
   if (host_ != other_cloud_device->GetHost()) {
     return false;
   }
diff --git a/src/components/transport_manager/src/transport_manager_impl.cc b/src/components/transport_manager/src/transport_manager_impl.cc
index d197882120..a74ddb700e 100644
--- a/src/components/transport_manager/src/transport_manager_impl.cc
+++ b/src/components/transport_manager/src/transport_manager_impl.cc
@@ -131,7 +131,7 @@ void TransportManagerImpl::ReconnectionTimeout() {
 }
 
 void TransportManagerImpl::AddCloudDevice(
-    const transport_manager::transport_adapter::CloudAppProperties
+    const transport_manager::transport_adapter::CloudAppProperties&
         cloud_properties) {
   transport_adapter::DeviceType type = transport_adapter::DeviceType::UNKNOWN;
   if ((cloud_properties.cloud_transport_type == "WS") ||