linux-kernel - [PATCH v2 1/2] wifi: ray_cs: remove one redundant del

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Message-Id: <20230316133236.556198-2-dzm91@hust.edu.cn>
Date:   Thu, 16 Mar 2023 21:32:35 +0800
From:   Dongliang Mu <dzm91@...t.edu.cn>
To:     Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     Dongliang Mu <dzm91@...t.edu.cn>, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] wifi: ray_cs: remove one redundant del_timer

In ray_detach, it and its child function ray_release both call
del_timer(_sync) on the same timer.

Fix this by removing the del_timer_sync in the ray_detach, and revising
the del_timer to del_timer_sync.

Signed-off-by: Dongliang Mu <dzm91@...t.edu.cn>
---
 drivers/net/wireless/ray_cs.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 1f57a0055bbd..ce7911137014 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -322,7 +322,6 @@ static int ray_probe(struct pcmcia_device *p_dev)
 static void ray_detach(struct pcmcia_device *link)
 {
 	struct net_device *dev;
-	ray_dev_t *local;
 
 	dev_dbg(&link->dev, "ray_detach\n");
 
@@ -331,9 +330,6 @@ static void ray_detach(struct pcmcia_device *link)
 
 	ray_release(link);
 
-	local = netdev_priv(dev);
-	del_timer_sync(&local->timer);
-
 	if (link->priv) {
 		unregister_netdev(dev);
 		free_netdev(dev);
@@ -734,7 +730,7 @@ static void ray_release(struct pcmcia_device *link)
 
 	dev_dbg(&link->dev, "ray_release\n");
 
-	del_timer(&local->timer);
+	del_timer_sync(&local->timer);
 
 	iounmap(local->sram);
 	iounmap(local->rmem);
-- 
2.39.2