diff --git a/src/core/lv_global.h b/src/core/lv_global.h
index 2b36a10e5f..fdbf7394dd 100644
--- a/src/core/lv_global.h
+++ b/src/core/lv_global.h
@@ -99,7 +99,6 @@ typedef struct _lv_global_t {
 
 #if LV_CACHE_DEF_SIZE > 0
     lv_cache_t * img_cache;
-    size_t cache_builtin_max_size;
 #endif
 
     lv_draw_global_info_t draw_info;
diff --git a/src/draw/lv_image_decoder.c b/src/draw/lv_image_decoder.c
index 52899266b9..fb8ac193db 100644
--- a/src/draw/lv_image_decoder.c
+++ b/src/draw/lv_image_decoder.c
@@ -117,14 +117,7 @@ lv_result_t lv_image_decoder_open(lv_image_decoder_dsc_t * dsc, const void * src
     dsc->src_type = src_type;
 
     if(dsc->src_type == LV_IMAGE_SRC_FILE) {
-        size_t fnlen = lv_strlen(src);
-        dsc->src = lv_malloc(fnlen + 1);
-        LV_ASSERT_MALLOC(dsc->src);
-        if(dsc->src == NULL) {
-            LV_LOG_WARN("Out of memory");
-            return LV_RESULT_INVALID;
-        }
-        lv_strcpy((char *)dsc->src, src);
+        dsc->src = lv_strdup(src);
     }
     else {
         dsc->src = src;
@@ -133,7 +126,6 @@ lv_result_t lv_image_decoder_open(lv_image_decoder_dsc_t * dsc, const void * src
     lv_result_t res = LV_RESULT_INVALID;
 
     lv_image_decoder_t * decoder;
-    lv_image_decoder_args_t * args_copy = NULL;
 
     static const lv_image_decoder_args_t def_args = {
         .stride_align = LV_DRAW_BUF_STRIDE_ALIGN != 1,
@@ -181,8 +173,6 @@ lv_result_t lv_image_decoder_open(lv_image_decoder_dsc_t * dsc, const void * src
     if(dsc->src_type == LV_IMAGE_SRC_FILE)
         lv_free((void *)dsc->src);
 
-    if(args_copy) lv_free(args_copy);
-
     return res;
 }