Messages in this thread Patch in this message | | | Date | Wed, 05 Jun 2013 15:11:35 +0800 | From | Michael Wang <> | Subject | [PATCH 3/3] workqueue: add a check point in pwq_activate_delayed_work() |
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get_work_pwq() is possible to return NULL, add a check point for that in the context inside pwq_activate_delayed_work().
CC: Tejun Heo <tj@kernel.org> Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com> --- kernel/workqueue.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index ee8e29a..ea2ec38 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1072,6 +1072,7 @@ static void put_pwq_unlocked(struct pool_workqueue *pwq) static void pwq_activate_delayed_work(struct work_struct *work) { struct pool_workqueue *pwq = get_work_pwq(work); + BUG_ON(!pwq); trace_workqueue_activate_work(work); move_linked_works(work, &pwq->pool->worklist, NULL); -- 1.7.4.1
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