linux-kernel - [PATCH] staging: rtl8192e: Fix signedness bug in rtllib_rx_assoc

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Date:   Thu, 14 Apr 2022 18:34:50 +0800
From:   Haowen Bai <baihaowen@...zu.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Haowen Bai <baihaowen@...zu.com>, <linux-staging@...ts.linux.dev>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] staging: rtl8192e: Fix signedness bug in rtllib_rx_assoc_resp()

function rtllib_rx_assoc_resp () unsigned errcode receive auth_parse()'s
errcode -ENOMEM.

Signed-off-by: Haowen Bai <baihaowen@...zu.com>
---
 drivers/staging/rtl8192e/rtllib_softmac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index 4b6c2295a3cf..57f70cc8cb81 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -1764,7 +1764,7 @@ static void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
 	spin_unlock_irqrestore(&ieee->lock, flags);
 }
 
-static inline u16 auth_parse(struct net_device *dev, struct sk_buff *skb,
+static inline s16 auth_parse(struct net_device *dev, struct sk_buff *skb,
 			     u8 **challenge, int *chlen)
 {
 	struct rtllib_authentication *a;
@@ -2278,7 +2278,7 @@ rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
 
 static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
 {
-	u16 errcode;
+	s16 errcode;
 	u8 *challenge;
 	int chlen = 0;
 	bool bSupportNmode = true, bHalfSupportNmode = false;
-- 
2.7.4