Update thread count on OOM error in worker_thread()

mongoose.c

@@ -4136,8 +4136,7 @@ static void worker_thread(struct mg_context *ctx) {
   conn = (struct mg_connection *) calloc(1, sizeof(*conn) + buf_size);
   if (conn == NULL) {
     cry(fc(ctx), "%s", "Cannot create new connection struct, OOM");
-    return;
-  }
+  } else {
     conn->buf_size = buf_size;
     conn->buf = (char *) (conn + 1);
 
@@ -4158,13 +4157,15 @@ static void worker_thread(struct mg_context *ctx) {
       conn->request_info.is_ssl = conn->client.is_ssl;
 
       if (!conn->client.is_ssl ||
-        (conn->client.is_ssl && sslize(conn, conn->ctx->ssl_ctx, SSL_accept))) {
+          (conn->client.is_ssl &&
+           sslize(conn, conn->ctx->ssl_ctx, SSL_accept))) {
         process_new_connection(conn);
       }
 
       close_connection(conn);
     }
     free(conn);
+  }
 
   // Signal master that we're done with connection and exiting
   (void) pthread_mutex_lock(&ctx->mutex);