From 048b51010d25187799632082917b8b883df98df7 Mon Sep 17 00:00:00 2001
From: Jiajie Li <lijiajie11@huawei.com>
Date: Thu, 17 Feb 2022 18:11:07 +0800
Subject: [PATCH 2/5] legacy/fwcfg: fix bug of wrong size judgment

When call `read_data_reg`, the size should be in (0,8], not (0,8).
Fix it.

Signed-off-by: Jiajie Li <lijiajie11@huawei.com>
---
 devices/src/legacy/fwcfg.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/devices/src/legacy/fwcfg.rs b/devices/src/legacy/fwcfg.rs
index 7e9e73f..866bab2 100644
--- a/devices/src/legacy/fwcfg.rs
+++ b/devices/src/legacy/fwcfg.rs
@@ -688,7 +688,7 @@ impl FwCfgCommon {
     /// Return the value of the register
     ///
     fn read_data_reg(&mut self, _addr: u64, mut size: u32) -> Result<u64> {
-        if size == 0 || size >= std::mem::size_of::<u64>() as u32 {
+        if size == 0 || size > std::mem::size_of::<u64>() as u32 {
             bail!(
                 "Failed to read from FWcfg data register, size {} overflows",
                 size
-- 
2.25.1

