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slip: not call free_netdev before rtnl_unlock in slip_open

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[ Upstream commit f596c87005f7b1baeb7d62d9a9e25d68c3dfae10 ]

As the description before netdev_run_todo, we cannot call free_netdev
before rtnl_unlock, fix it by reorder the code.

Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
yangerkun 2020-02-26 11:54:35 +08:00 • committed by Greg Kroah-Hartman
commit 4d6ee3123d
1 changed files with 3 additions and 0 deletions
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3
drivers/net/slip/slip.c
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@ -863,7 +863,10 @@ err_free_chan:
tty->disc_data = NULL;
clear_bit(SLF_INUSE, &sl->flags);
sl_free_netdev(sl->dev);
/* do not call free_netdev before rtnl_unlock */
rtnl_unlock();
free_netdev(sl->dev);
return err;
err_exit:
rtnl_unlock();