s390: avoid inconsistent lock state in qeth

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ipv6_regen_rndid in net/ipv6/addrconf.c makes use of "write_lock_bh"
for its inet6_dev->lock. It may run in softirq-context.
qeth makes use of "read_lock" for the same inet6_dev->lock.
To avoid a potential deadlock situation, qeth should make use of
"read_lock_bh" for its usages of inet6_dev->lock.

Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

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Ursula Braun 2007-06-20 12:58:02 +02:00 • committed by Jeff Garzik

parent d81ef0fb76

commit add3f2fa7a

1 changed files with 4 additions and 4 deletions

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8

drivers/s390/net/qeth_main.c

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