From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/arch/alpha/include/asm/futex.h | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/kernel/arch/alpha/include/asm/futex.h b/kernel/arch/alpha/include/asm/futex.h
index ca33225..da67afd 100644
--- a/kernel/arch/alpha/include/asm/futex.h
+++ b/kernel/arch/alpha/include/asm/futex.h
@@ -31,7 +31,8 @@
{
int oldval = 0, ret;
- pagefault_disable();
+ if (!access_ok(uaddr, sizeof(u32)))
+ return -EFAULT;
switch (op) {
case FUTEX_OP_SET:
@@ -53,8 +54,6 @@
ret = -ENOSYS;
}
- pagefault_enable();
-
if (!ret)
*oval = oldval;
@@ -68,7 +67,7 @@
int ret = 0, cmp;
u32 prev;
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+ if (!access_ok(uaddr, sizeof(u32)))
return -EFAULT;
__asm__ __volatile__ (
--
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