net: lapb: Decrease the refcount of "struct lapb_cb" in lapb_device_event
authorXie He <xie.he.0141@gmail.com>
Thu, 31 Dec 2020 17:43:31 +0000 (09:43 -0800)
committerJakub Kicinski <kuba@kernel.org>
Mon, 4 Jan 2021 21:42:41 +0000 (13:42 -0800)
commitb40f97b91a3b167ab22c9e9f1ef00b1615ff01e9
tree53ad9a4b54b8276eccedcc4bb643423d4cb760ac
parente80bd76fbf563cc7ed8c9e9f3bbcdf59b0897f69
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@dev.tdt.de>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Link: https://lore.kernel.org/r/20201231174331.64539-1-xie.he.0141@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/lapb/lapb_iface.c