tree f3ef9fe491dbdece50d77ccc56bb797727b91375
parent af38f2989572704a846a5577b5ab3b1e2885cbfb
author Eric W. Biederman <ebiederm@xmission.com> 1242234111 +0000
committer David S. Miller <davem@davemloft.net> 1242710159 -0700

net: Fix ipoib rtnl_lock sysfs deadlock.

Network device sysfs files that grab the rtnl_lock unconditionally
will deadlock if accessed when the network device is being
unregistered.  So use trylock and syscall_restart to avoid this
deadlock.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>