6lowpan: revert: add missing spin_lock_init()

Revert the commit 768f7c7c12 to initialize
spinlock in the more preferable way and make it static to avoid sparse
warning.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
alex.bluesman.smirnov@gmail.com 2012-07-10 21:22:42 +00:00 • committed by David S. Miller
commit 4d27de149b