MFH: resolve coverity issue #224

tony2001 · tony2001 · commit 0966666256fc · 2006-11-28T21:20:33.000Z
diff --git a/Zend/zend_builtin_functions.c b/Zend/zend_builtin_functions.c
@@ -1926,7 +1926,7 @@ 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--;

Original file line number	Diff line number	Diff line change
`@@ -1926,7 +1926,7 @@ ZEND_API void zend_fetch_debug_backtrace(zval *return_value, int skip_last, int`
`1926`	`1926`	`}`
`1927`	`1927`
`1928`	`1928`	`/* skip debug_backtrace() */`
`1929`		`- if (skip_last--) {`
	`1929`	`+ if (skip_last-- && ptr) {`
`1930`	`1930`	`int arg_count = ((ulong)(cur_arg_pos - 2));`
`1931`	`1931`	`cur_arg_pos -= (arg_count + 2);`
`1932`	`1932`	`frames_on_stack--;`