[PATCH 04/22] worker: do not use dynamic memory for RedSurfaceCmd

[Frediano Ziglio <fziglio@xxxxxxxxxx>]

Allocation on stack is sufficient and code is more similar to
QXL_CMD_MESSAGE and QXL_CMD_UPDATE cases.

Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
---
 server/display-channel.c | 5 +----
 server/red_worker.c      | 9 +++++----
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/server/display-channel.c b/server/display-channel.c
index 43f2e0e..809673b 100644
--- a/server/display-channel.c
+++ b/server/display-channel.c
@@ -2081,7 +2081,7 @@ void display_channel_process_surface_cmd(DisplayChannel *display, RedSurfaceCmd
 
     surface_id = surface->surface_id;
     if SPICE_UNLIKELY(surface_id >= display->n_surfaces) {
-        goto exit;
+        return;
     }
 
     red_surface = &display->surfaces[surface_id];
@@ -2119,9 +2119,6 @@ void display_channel_process_surface_cmd(DisplayChannel *display, RedSurfaceCmd
     default:
         spice_warn_if_reached();
     };
-exit:
-    red_put_surface_cmd(surface);
-    free(surface);
 }
 
 void display_channel_update_compression(DisplayChannel *display, DisplayChannelClient *dcc)
diff --git a/server/red_worker.c b/server/red_worker.c
index 329c2ef..f2c3126 100644
--- a/server/red_worker.c
+++ b/server/red_worker.c
@@ -329,15 +329,16 @@ static int red_process_commands(RedWorker *worker, uint32_t max_pipe_size, int *
             break;
         }
         case QXL_CMD_SURFACE: {
-            RedSurfaceCmd *surface = spice_new0(RedSurfaceCmd, 1);
+            RedSurfaceCmd surface;
 
             if (red_get_surface_cmd(&worker->mem_slots, ext_cmd.group_id,
-                                    surface, ext_cmd.cmd.data)) {
-                free(surface);
+                                    &surface, ext_cmd.cmd.data)) {
                 break;
             }
-            display_channel_process_surface_cmd(worker->display_channel, surface,
+            display_channel_process_surface_cmd(worker->display_channel, &surface,
                                                 ext_cmd.group_id, FALSE);
+            // do not release resource as is released inside red_process_surface
+            red_put_surface_cmd(&surface);
             break;
         }
         default:
-- 
2.4.3

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