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Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

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Pull crypto fix from Herbert Xu:
 "This fixes a regression in padata"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  padata: fix possible padata_works_lock deadlock
This commit is contained in:
Linus Torvalds 2020-09-09 19:46:22 -07:00
commit 7fe10096c1
1 changed files with 3 additions and 2 deletions
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5
kernel/padata.c
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@ -215,12 +215,13 @@ int padata_do_parallel(struct padata_shell *ps,
padata->pd = pd;
padata->cb_cpu = *cb_cpu;
rcu_read_unlock_bh();
spin_lock(&padata_works_lock);
padata->seq_nr = ++pd->seq_nr;
pw = padata_work_alloc();
spin_unlock(&padata_works_lock);
rcu_read_unlock_bh();
if (pw) {
padata_work_init(pw, padata_parallel_worker, padata, 0);
queue_work(pinst->parallel_wq, &pw->pw_work);