From e5eaa355536382edbc476fe62b5035d0081b2db4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=81=E6=AC=A3=E7=AB=A5?= <dingxintong@xiaomi.com>
Date: Fri, 12 Mar 2021 11:40:05 +0800
Subject: [PATCH] vfs/epoll: Fix one bug of EPOLL_CTL_DEL.
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N/A

Signed-off-by: 丁欣童 <dingxintong@xiaomi.com>
Change-Id: I91ec9fbf4b3884cb29bf30c4ff69a6c5df7f30ca
---
 fs/vfs/fs_epoll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/vfs/fs_epoll.c b/fs/vfs/fs_epoll.c
index ef544184cd1..90fb8f95df0 100644
--- a/fs/vfs/fs_epoll.c
+++ b/fs/vfs/fs_epoll.c
@@ -275,7 +275,7 @@ int epoll_ctl(int epfd, int op, int fd, struct epoll_event *ev)
           {
             if (eph->poll[i].fd == fd)
               {
-                if (i != eph->occupied - 1)
+                if (i != eph->occupied)
                   {
                     memmove(&eph->data[i], &eph->data[i + 1],
                             sizeof(epoll_data_t) * (eph->occupied - i));