From: Antony Dovgal <tony2001@php.net>
Date: Tue, 28 Nov 2006 21:19:58 +0000 (+0000)
Subject: resolve coverity issue #224
X-Git-Tag: RELEASE_1_0_0RC1~892
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=afd3d27c5f84444b10f990f9e3a3584e5066f1a1;p=php

resolve coverity issue #224
---

diff --git a/Zend/zend_builtin_functions.c b/Zend/zend_builtin_functions.c
index 2124eaa163..a5c8ca1c83 100644
--- a/Zend/zend_builtin_functions.c
+++ b/Zend/zend_builtin_functions.c
@@ -2031,7 +2031,7 @@ ZEND_API void zend_fetch_debug_backtrace(zval *return_value, int skip_last, int
 	}
 
 	/* skip debug_backtrace() */
-	if (skip_last--) {
+	if (skip_last-- && ptr) {
 		int arg_count = *((ulong*)(cur_arg_pos - 2));
 		cur_arg_pos -= (arg_count + 2);
 		frames_on_stack--;