linux-kernel - [PATCH] staging: rtl8192u: Fix keyidx assignment within if condition

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Date:   Tue, 4 Jul 2023 23:33:09 +0800
From:   Wang Jinchao <wangjinchao600@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Cc:     wangjinchao600@...il.com
Subject: [PATCH] staging: rtl8192u: Fix keyidx assignment within if condition

Refactor the if condition into nested conditionals to improve clarity.
The condition is currently in the form of (E1 && E2 && E3), where the
variable keyidx is assigned a value in E3.

Signed-off-by: Wang Jinchao <wangjinchao600@...il.com>
---
 drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
index ca09367005e1..5da8ac401df0 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
@@ -1121,10 +1121,12 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 
 	/* skb: hdr + (possibly fragmented, possibly encrypted) payload */
 
-	if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) &&
-	    (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0) {
-		netdev_dbg(ieee->dev, "decrypt frame error\n");
-		goto rx_dropped;
+	if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP)) {
+		keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt);
+		if (keyidx < 0) {
+			netdev_dbg(ieee->dev, "decrypt frame error\n");
+			goto rx_dropped;
+		}
 	}
 
 
-- 
2.40.0