tree 19b913e5a43e3010c8c8790c7aa87d0d5167dea1
parent 9eb5bf838d06aa6ddebe4aca6b5cedcf2eb53b86
author Eric Dumazet <edumazet@google.com> 1372885454 -0700
committer David S. Miller <davem@davemloft.net> 1372895530 -0700

netem: fix possible NULL deref in netem_dequeue()

commit aec0a40a6f7884 ("netem: use rb tree to implement the time queue")
added a regression if a child qdisc is attached to netem, as we perform
a NULL dereference.

Fix this by adding a temporary variable to cache
netem_skb_cb(skb)->time_to_send.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>