net: FIX bonding sysfs rtnl_lock deadlock

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Sysfs files for a network device can not unconditionally take the
rtnl_lock as the bonding sysfs files do.  If someone accesses those
sysfs files while the network device is being unregistered with the
rtnl_lock held we will deadlock.

So use trylock and restart_syscall to avoid this problem.

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

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Eric W. Biederman 2009-05-13 17:02:50 +00:00 • committed by David S. Miller

parent 26574401fe

commit 496a60cdcd

1 changed files with 6 additions and 3 deletions

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drivers/net/bonding/bond_sysfs.c

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