Fix memory leak issue after png image is decoded

Change-Id: Idf1d376c7639d5b167690524d4a81e50a96ce4e9
Signed-off-by: Jiyong Min <jiyong.min@samsung.com>

diff --git a/png/mm_util_png.c b/png/mm_util_png.c
index 7d9987f..89cac72 100755 (executable)
--- a/png/mm_util_png.c
+++ b/png/mm_util_png.c
@@ -471,13 +471,9 @@ int write_png(void **data, mm_util_png_data *encoded, FILE *fp)
        row_pointers = png_malloc(png_ptr, sizeof(png_bytep) * encoded->height);
 
        for (row_index = 0; row_index < encoded->height; row_index++) {
-               row_pointers[row_index] = png_malloc(png_ptr, encoded->png.rowbytes);
-               memcpy(row_pointers[row_index], *data, encoded->png.rowbytes);
-               *data += encoded->png.rowbytes;
+               row_pointers[row_index] = (*data) + (row_index * encoded->png.rowbytes);
        }
 
-       *data -= encoded->png.rowbytes * encoded->height;
-
        png_write_info(png_ptr, info_ptr);
        png_write_image(png_ptr, row_pointers);
        png_write_end(png_ptr, NULL);