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| author | Mark Brown <broonie@kernel.org> | 2021-09-01 17:30:37 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-09-01 17:30:37 +0100 |
| commit | 0f2ef911de0bdf3a0ea1d9b28e9126d3e018bbd5 (patch) | |
| tree | 7d0bc8977cc78fcf949e0b6635a0635841ff0297 /kernel/workqueue.c | |
| parent | ASoC: dt-bindings: mt8195: remove dependent headers in the example (diff) | |
| parent | Merge remote-tracking branch 'asoc/for-5.15' into asoc-linus (diff) | |
| download | linux-0f2ef911de0bdf3a0ea1d9b28e9126d3e018bbd5.tar.gz linux-0f2ef911de0bdf3a0ea1d9b28e9126d3e018bbd5.zip | |
Merge tag 'asoc-v5.15' into asoc-5.15
ASoC: Updates for v5.15
Quite a quiet release this time, mostly a combination of cleanups
and a good set of new drivers.
- Lots of cleanups and improvements to the Intel drivers,
including some new systems support.
- New support for AMD Vangoh, CUI CMM-4030D-261, Mediatek
Mt8195, Renesas RZ/G2L Mediatek Mt8195, RealTek RT101P,
Renesas RZ/G2L,, Rockchip RK3568 S/PDIF.
Diffstat (limited to 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 50142fc08902..f148eacda55a 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -3676,15 +3676,21 @@ static void pwq_unbound_release_workfn(struct work_struct *work) unbound_release_work); struct workqueue_struct *wq = pwq->wq; struct worker_pool *pool = pwq->pool; - bool is_last; + bool is_last = false; - if (WARN_ON_ONCE(!(wq->flags & WQ_UNBOUND))) - return; + /* + * when @pwq is not linked, it doesn't hold any reference to the + * @wq, and @wq is invalid to access. + */ + if (!list_empty(&pwq->pwqs_node)) { + if (WARN_ON_ONCE(!(wq->flags & WQ_UNBOUND))) + return; - mutex_lock(&wq->mutex); - list_del_rcu(&pwq->pwqs_node); - is_last = list_empty(&wq->pwqs); - mutex_unlock(&wq->mutex); + mutex_lock(&wq->mutex); + list_del_rcu(&pwq->pwqs_node); + is_last = list_empty(&wq->pwqs); + mutex_unlock(&wq->mutex); + } mutex_lock(&wq_pool_mutex); put_unbound_pool(pool); |