tree cb2c1c18a791c79f51cb9ea7516287f9b2394f97
parent 8944146daa2c38dd85bc489d1b84fb9abc108837
author David S. Miller <davem@davemloft.net> 1247851699 -0700
committer David S. Miller <davem@davemloft.net> 1247851699 -0700

sparc: Fix cleanup crash in bbc_envctrl_cleanup()

If kthread_run() fails or never gets to run we'll have NULL
or a pointer encoded error in kenvctrld_task, rather than
a legitimate task pointer.

So this makes bbc_envctrl_cleanup() crash as it passed this
bogus pointer into kthread_stop().

Reported-by: BERTRAND Joël <joel.bertrand@systella.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>