From: Xie He <xie.he.0141@gmail.com>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
linux-x25@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, Martin Schiller <ms@dev.tdt.de>
Cc: Xie He <xie.he.0141@gmail.com>
Subject: [PATCH net] net: lapb: Decrease the refcount of "struct lapb_cb" in lapb_device_event
Date: Thu, 31 Dec 2020 09:43:31 -0800 [thread overview]
Message-ID: <20201231174331.64539-1-xie.he.0141@gmail.com> (raw)
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@dev.tdt.de>
Signed-off-by: Xie He <xie.he.0141@gmail.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
next reply other threads:[~2020-12-31 17:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-31 17:43 Xie He [this message]
2021-01-04 21:50 ` [PATCH net] net: lapb: Decrease the refcount of "struct lapb_cb" in lapb_device_event patchwork-bot+netdevbpf
2021-01-06 7:35 ` Martin Schiller
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