workqueue: BUG_ON() instead of returning NULL in wq_node_nr_active()

wq_node_nr_active() warns and returns NULL when @wq is not unbound, but
every caller dereferences the result right away, so the WARN_ON_ONCE()
only moves the oops one frame up, as raised by Tejun.

Fix it by BUGing_ON() instead of this silly WARN_ON_ONCE();

Fixes: b72fdc651056 ("workqueue: account nr_active by the backing pool")
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>

0 files changed, 0 insertions, 0 deletions