vulkan: don't leak debug utils label name

Label names are duplicated, so free them before resetting or deleting
the cmdbuffer/queue.

Fixes leaks when testing dEQP-VK.api.debug_utils.long_labels.

Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33611>

src/vulkan/runtime/vk_command_buffer.c

@@ -23,6 +23,7 @@
 
 #include "vk_command_buffer.h"
 
+#include "vk_alloc.h"
 #include "vk_command_pool.h"
 #include "vk_common_entrypoints.h"
 #include "vk_device.h"
@@ -63,6 +64,8 @@ vk_command_buffer_reset(struct vk_command_buffer *command_buffer)
    vk_cmd_queue_reset(&command_buffer->cmd_queue);
    vk_meta_object_list_reset(command_buffer->base.device,
                              &command_buffer->meta_objects);
+   util_dynarray_foreach (&command_buffer->labels, VkDebugUtilsLabelEXT, label)
+      vk_free(&command_buffer->base.device->alloc, (void *)label->pLabelName);
    util_dynarray_clear(&command_buffer->labels);
    command_buffer->region_begin = true;
 }
@@ -97,6 +100,8 @@ vk_command_buffer_finish(struct vk_command_buffer *command_buffer)
    list_del(&command_buffer->pool_link);
    vk_command_buffer_reset_render_pass(command_buffer);
    vk_cmd_queue_finish(&command_buffer->cmd_queue);
+   util_dynarray_foreach (&command_buffer->labels, VkDebugUtilsLabelEXT, label)
+      vk_free(&command_buffer->base.device->alloc, (void *)label->pLabelName);
    util_dynarray_fini(&command_buffer->labels);
    vk_meta_object_list_finish(command_buffer->base.device,
                               &command_buffer->meta_objects);

src/vulkan/runtime/vk_queue.c

@@ -1371,6 +1371,8 @@ vk_queue_finish(struct vk_queue *queue)
    cnd_destroy(&queue->submit.push);
    mtx_destroy(&queue->submit.mutex);
 
+   util_dynarray_foreach (&queue->labels, VkDebugUtilsLabelEXT, label)
+      vk_free(&queue->base.device->alloc, (void *)label->pLabelName);
    util_dynarray_fini(&queue->labels);
    list_del(&queue->link);
    vk_object_base_finish(&queue->base);