Fix segfault

Provoker · Provoker · commit 10eac34cf9be · 2017-03-01T14:12:08.000+05:00
diff --git a/extension/xhprof.c b/extension/xhprof.c
@@ -1539,7 +1539,7 @@ ZEND_DLEXPORT void hp_execute_internal(zend_execute_data *execute_data, zval *re
 	  func = zend_string_init(class_name->val, class_name_len + 2 + func_name->len, 0); 
 	  memcpy(func->val + class_name_len, "::", 2);
 	  memcpy(func->val + class_name_len + 2, func_name->val, func_name->len);
-  } else {
+  } else if (func) {
 	  //just do the copy;
 	  func = zend_string_init(func->val, func->len, 0);
   }

Original file line number	Diff line number	Diff line change
`@@ -1539,7 +1539,7 @@ ZEND_DLEXPORT void hp_execute_internal(zend_execute_data execute_data, zval re`
`1539`	`1539`	`func = zend_string_init(class_name->val, class_name_len + 2 + func_name->len, 0);`
`1540`	`1540`	`memcpy(func->val + class_name_len, "::", 2);`
`1541`	`1541`	`memcpy(func->val + class_name_len + 2, func_name->val, func_name->len);`
`1542`		`- } else {`
	`1542`	`+ } else if (func) {`
`1543`	`1543`	`//just do the copy;`
`1544`	`1544`	`func = zend_string_init(func->val, func->len, 0);`
`1545`	`1545`	`}`