shithub: rgbds

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ref: 7903c14993dd6b5fdaaed6664fd6a8878b227ffd
parent: b42a04c24ebcf55f1bc2927276a473490fdb6117
author: ISSOtm <eldredhabert0@gmail.com>
date: Fri Feb 7 09:51:13 EST 2020

Fix undefined behavior when reading constant in RGBLINK

--- a/src/link/patch.c
+++ b/src/link/patch.c
@@ -110,8 +110,8 @@
 
 /* RPN operators */
 
-static uint8_t getRPNByte(uint8_t const **expression, int32_t *size,
-			  char const *fileName, int32_t lineNo)
+static uint32_t getRPNByte(uint8_t const **expression, int32_t *size,
+			   char const *fileName, int32_t lineNo)
 {
 	if (!(*size)--)
 		errx(1, "%s(%d): RPN expression overread", fileName, lineNo);