[Evas]fix evas jpeg load buf

if file was damaged, it's file info in file is different from real file size.
in that case jpeg map feature have to deal with file info exceed buffer size.
I add error check code related with this

Change-Id: I72dad10bf48fb6930e3f8d1c1ff85d109d0bf4b9

diff --git a/src/modules/loaders/jpeg/evas_image_load_jpeg.c b/src/modules/loaders/jpeg/evas_image_load_jpeg.c
index 52feb46..673f262 100644 (file)
--- a/src/modules/loaders/jpeg/evas_image_load_jpeg.c
+++ b/src/modules/loaders/jpeg/evas_image_load_jpeg.c
@@ -114,8 +114,18 @@ _evas_jpeg_membuf_src_skip(j_decompress_ptr cinfo,
 {
    struct jpeg_membuf_src *src = (struct jpeg_membuf_src *)cinfo->src;
 
+   long rec = 0;
+   rec = src->pub.bytes_in_buffer - num_bytes;
+
+   if (rec <0)
+     {
+        (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo));
+     }
+   else
+     {
    src->pub.bytes_in_buffer -= num_bytes;
    src->pub.next_input_byte += num_bytes;
+     }
 }
 
 static void