macvtap: Close a race between macvtap_open and macvtap_dellink.

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There is a small window in macvtap_open between looking up a
networking device and calling macvtap_set_queue in which
macvtap_del_queues called from macvtap_dellink.   After
calling macvtap_del_queues it is totally incorrect to
allow macvtap_set_queue to proceed so prevent success by
reporting that all of the available queues are in use.

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

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Eric W. Biederman 2011-10-20 04:26:01 +00:00 • committed by David S. Miller

parent 4b727361f0

commit 99f34b38cd

1 changed files with 2 additions and 0 deletions

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drivers/net/macvtap.c

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