diff --git a/libopenjpeg/jpwl/jpwl.c b/libopenjpeg/jpwl/jpwl.c
index a910ea78..4247f750 100644
--- a/libopenjpeg/jpwl/jpwl.c
+++ b/libopenjpeg/jpwl/jpwl.c
@@ -168,8 +168,8 @@ void j2k_add_marker(opj_codestream_info_t *cstr_info, unsigned short int type, i
 
 	/* expand the list? */
 	if ((cstr_info->marknum + 1) > cstr_info->maxmarknum) {
-		cstr_info->maxmarknum = 100 + (int) ((float) cstr_info->maxmarknum * 1.0F);
-		cstr_info->marker = (opj_marker_info_t*)opj_realloc(cstr_info->marker, cstr_info->maxmarknum);
+		cstr_info->maxmarknum += 100;
+		cstr_info->marker = (opj_marker_info_t*)opj_realloc(cstr_info->marker, cstr_info->maxmarknum * sizeof(opj_marker_info_t));
 	}
 
 	/* add the marker */
diff --git a/libopenjpeg/tcd.c b/libopenjpeg/tcd.c
index 7eabce55..18cdbc78 100644
--- a/libopenjpeg/tcd.c
+++ b/libopenjpeg/tcd.c
@@ -1352,7 +1352,7 @@ opj_bool tcd_decode_tile(opj_tcd_t *tcd, unsigned char *src, int len, int tileno
 				}
 				else {
 					cstr_info->tile[tileno].pdx[resno] = 15;
-					cstr_info->tile[tileno].pdx[resno] = 15;
+					cstr_info->tile[tileno].pdy[resno] = 15;
 				}
 			}
 		}