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Message-Id: <20201231174331.64539-1-xie.he.0141@gmail.com>
Date: Thu, 31 Dec 2020 09:43:31 -0800
From: Xie He <xie.he.0141@...il.com>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, linux-x25@...r.kernel.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
Martin Schiller <ms@....tdt.de>
Cc: Xie He <xie.he.0141@...il.com>
Subject: [PATCH net] net: lapb: Decrease the refcount of "struct lapb_cb" in lapb_device_event
In lapb_device_event, lapb_devtostruct is called to get a reference to
an object of "struct lapb_cb". lapb_devtostruct increases the refcount
of the object and returns a pointer to it. However, we didn't decrease
the refcount after we finished using the pointer. This patch fixes this
problem.
Fixes: a4989fa91110 ("net/lapb: support netdev events")
Cc: Martin Schiller <ms@....tdt.de>
Signed-off-by: Xie He <xie.he.0141@...il.com>
---
net/lapb/lapb_iface.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/lapb/lapb_iface.c b/net/lapb/lapb_iface.c
index 213ea7abc9ab..40961889e9c0 100644
--- a/net/lapb/lapb_iface.c
+++ b/net/lapb/lapb_iface.c
@@ -489,6 +489,7 @@ static int lapb_device_event(struct notifier_block *this, unsigned long event,
break;
}
+ lapb_put(lapb);
return NOTIFY_DONE;
}
--
2.27.0
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