From: Peter Johnson <peter@tortall.net>
Date: Fri, 1 Jun 2007 19:44:38 +0000 (-0000)
Subject: Don't try to yasm_expr_copy(NULL).
X-Git-Tag: v0.6.1~1^2~4
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1e604828b11984a597a2b357566e8422f2ae82ab;p=yasm

Don't try to yasm_expr_copy(NULL).

Found by: zzuf

svn path=/trunk/yasm/; revision=1867
---

diff --git a/modules/objfmts/coff/coff-objfmt.c b/modules/objfmts/coff/coff-objfmt.c
index 1df7c4cf..ae3ee08c 100644
--- a/modules/objfmts/coff/coff-objfmt.c
+++ b/modules/objfmts/coff/coff-objfmt.c
@@ -1844,7 +1844,7 @@ dir_setframe(yasm_object *object, yasm_valparamhead *valparams,
     code->loc = get_curpos(object, "SETFRAME", line);
     code->opcode = UWOP_SET_FPREG;
     code->info = (unsigned int)(*reg & 0xF);
-    yasm_value_initialize(&code->off, yasm_expr_copy(off), 8);
+    yasm_value_initialize(&code->off, off ? yasm_expr_copy(off) : NULL, 8);
     SLIST_INSERT_HEAD(&objfmt_coff->unwind->codes, code, link);
 }