@@ -215,7 +215,7 @@ static void free_filter_param(UnsharpFilterParam *fp)

     int z;

     for (z = 0; z < 2 * fp->steps_y; z++)

-        av_free(fp->sc[z]);

+        av_freep(&fp->sc[z]);

 }

 static av_cold void uninit(AVFilterContext *ctx)