[IPV6] SIT: Fix locking issues in PRL management.

To protect PRL list, use ipip6_lock.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki 2008-03-22 17:42:57 +09:00
commit 3fcfa12904