Add missing return statements to examples

Author: DockedFerret800

example/advanced/server/advanced_server.cpp

@@ -290,7 +290,7 @@ class websocket_session : public std::enable_shared_from_this<websocket_session>
             return;
 
         if(ec)
-            fail(ec, "read");
+            return fail(ec, "read");
 
         // Echo the message
         ws_.text(ws_.got_text());

example/websocket/server/async-ssl/websocket_server_async_ssl.cpp

@@ -151,7 +151,7 @@ class session : public std::enable_shared_from_this<session>
             return;
 
         if(ec)
-            fail(ec, "read");
+            return fail(ec, "read");
 
         // Echo the message
         ws_.text(ws_.got_text());

example/websocket/server/fast/websocket_server_fast.cpp

@@ -210,7 +210,7 @@ class async_session : public std::enable_shared_from_this<async_session>
             return;
 
         if(ec)
-            fail(ec, "read");
+            return fail(ec, "read");
 
         // Echo the message
         ws_.text(ws_.got_text());

example/websocket/server/stackless-ssl/websocket_server_stackless_ssl.cpp

@@ -146,7 +146,7 @@ class session
                     return;
                 }
                 if(ec)
-                    fail(ec, "read");
+                    return fail(ec, "read");
 
                 // Echo the message
                 ws_.text(ws_.got_text());

example/websocket/server/stackless/websocket_server_stackless.cpp

@@ -123,7 +123,7 @@ class session
                     return;
                 }
                 if(ec)
-                    fail(ec, "read");
+                    return fail(ec, "read");
 
                 // Echo the message
                 ws_.text(ws_.got_text());