From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp
---
kernel/arch/nds32/include/asm/futex.h | 10 ++++------
1 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/kernel/arch/nds32/include/asm/futex.h b/kernel/arch/nds32/include/asm/futex.h
index cb6cb91..4223f47 100644
--- a/kernel/arch/nds32/include/asm/futex.h
+++ b/kernel/arch/nds32/include/asm/futex.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2005-2017 Andes Technology Corporation
#ifndef __NDS32_FUTEX_H__
@@ -40,7 +40,7 @@
int ret = 0;
u32 val, tmp, flags;
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+ if (!access_ok(uaddr, sizeof(u32)))
return -EFAULT;
smp_mb();
@@ -66,8 +66,8 @@
{
int oldval = 0, ret;
-
- pagefault_disable();
+ if (!access_ok(uaddr, sizeof(u32)))
+ return -EFAULT;
switch (op) {
case FUTEX_OP_SET:
__futex_atomic_op("move %0, %3", ret, oldval, tmp, uaddr,
@@ -92,8 +92,6 @@
default:
ret = -ENOSYS;
}
-
- pagefault_enable();
if (!ret)
*oval = oldval;
--
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