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authorHerbert Xu <herbert@gondor.apana.org.au>2007-07-30 16:35:46 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-07-31 02:28:13 -0700
commit7f988eab57bd22884bbc452fb04c6c18738666b3 (patch)
treed679707a0251dc3d399de7e52c5499dff521c86e /drivers/net/loopback.c
parent7ce1b0edcb11f90f6fc5e0ceecff467f329889a0 (diff)
[NET]: Take dev_base_lock when moving device name hash list entry
When we added name-based hashing the dev_base_lock was designated as the lock to take when changing the name hash list. Unfortunately, because it was a preexisting lock that just happened to be taken in the right spots we neglected to take it in dev_change_name. The race can affect calles of __dev_get_by_name that do so without taking the RTNL. They may end up walking down the wrong hash chain and end up missing the device that they're looking for. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/loopback.c')
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