Index: ffmpeg-4.4.4/libavutil/hwcontext_vaapi.c
===================================================================
--- ffmpeg-4.4.4.orig/libavutil/hwcontext_vaapi.c
+++ ffmpeg-4.4.4/libavutil/hwcontext_vaapi.c
@@ -1032,7 +1032,7 @@ static int vaapi_map_from_drm(AVHWFrames
     uint32_t va_fourcc;
     int err, i, j, k;
 
-    unsigned long buffer_handle;
+    uintptr_t buffer_handle;
     VASurfaceAttribExternalBuffers buffer_desc;
     VASurfaceAttrib attrs[2] = {
         {
Index: ffmpeg-4.4.4/libavutil/hwcontext_vulkan.c
===================================================================
--- ffmpeg-4.4.4.orig/libavutil/hwcontext_vulkan.c
+++ ffmpeg-4.4.4/libavutil/hwcontext_vulkan.c
@@ -862,7 +862,7 @@ static void free_exec_ctx(AVHWFramesCont
 
     av_freep(&cmd->queues);
     av_freep(&cmd->bufs);
-    cmd->pool = NULL;
+    cmd->pool = VK_NULL_HANDLE;
 }
 
 static VkCommandBuffer get_buf_exec_ctx(AVHWFramesContext *hwfc, VulkanExecCtx *cmd)