linux-kernel - [PATCH] rtlwifi: rtl8188ee: remove redundant assignment of variable rtlpriv->btcoexist.reg_bt

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Date:   Wed, 31 Mar 2021 17:13:43 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     pkshih@...ltek.com
Cc:     kvalo@...eaurora.org, davem@...emloft.net, kuba@...nel.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Yang Li <yang.lee@...ux.alibaba.com>
Subject: [PATCH] rtlwifi: rtl8188ee: remove redundant assignment of variable rtlpriv->btcoexist.reg_bt_sco

Assigning value "3" to "rtlpriv->btcoexist.reg_bt_sco" here, but that
stored value is overwritten before it can be used.

Coverity reports this problem as
CWE563: A value assigned to a variable is never used.
drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c:
rtl8188ee_bt_reg_init

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c
index 861cc66..bf686a9 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c
@@ -2466,8 +2466,6 @@ void rtl8188ee_bt_reg_init(struct ieee80211_hw *hw)
 
 	/* 0:Low, 1:High, 2:From Efuse. */
 	rtlpriv->btcoexist.reg_bt_iso = 2;
-	/* 0:Idle, 1:None-SCO, 2:SCO, 3:From Counter. */
-	rtlpriv->btcoexist.reg_bt_sco = 3;
 	/* 0:Disable BT control A-MPDU, 1:Enable BT control A-MPDU. */
 	rtlpriv->btcoexist.reg_bt_sco = 0;
 }
-- 
1.8.3.1