From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Fri, 12 Feb 2016 11:34:54 +0000 (+0100)
Subject: yylex: use grub_fatal for exit.
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=342d6edb970dd8af21feea3acf02905a5d117e38;p=grub2.git

yylex: use grub_fatal for exit.

lexer calls yylex_fatal on fatal internal errors. yylex_fatal itself is
declared as noreturn and calls exit. Returning from noreturn function has
unpredictable consequences.
---

diff --git a/grub-core/script/yylex.l b/grub-core/script/yylex.l
index 9c2cfe115..95b219170 100644
--- a/grub-core/script/yylex.l
+++ b/grub-core/script/yylex.l
@@ -92,7 +92,7 @@ typedef size_t yy_size_t;
 #define stdout 0
 
 #define fprintf(...) 0
-#define exit(...)
+#define exit(...) grub_fatal("fatal error in lexer")
 #endif
 
 }