thread*.c: avoid unnecessary initialization for list_for_each_safe

According to r52446, it is only necessary for the current item (@i),
not the `@nxt` parameter for list_for_each_safe.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64486 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 2 deletions

diff --git a/thread.c b/thread.c
index 51710d24a7..6065593712 100644
--- a/thread.c
+++ b/thread.c
@@ -2332,8 +2332,7 @@ int
 rb_notify_fd_close(int fd, struct list_head *busy)
 {
     rb_vm_t *vm = GET_THREAD()->vm;
-    struct waiting_fd *wfd = 0;
-    struct waiting_fd *next = 0;
+    struct waiting_fd *wfd = 0, *next;
 
     list_for_each_safe(&vm->waiting_fds, wfd, next, wfd_node) {
 	if (wfd->fd == fd) {