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author | Juergen Gross <jgross@suse.com> | 2018-01-29 15:54:46 +0100 |
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committer | Juergen Gross <jgross@suse.com> | 2018-01-29 15:54:46 +0100 |
commit | fe8cbbbc0e68dad845f72ad75c8099b88f7ff049 (patch) | |
tree | 2bf17da93b86508fe2f66e87f39897a1d4b403dc /crypto/algapi.c | |
parent | 40248a5f572a9ee5602fb61b33ddcc7de3b4cf5b (diff) | |
parent | 21864b027d847a6d91903a5ba219770403ba8aad (diff) | |
download | linux-crypto-fe8cbbbc0e68dad845f72ad75c8099b88f7ff049.tar.gz linux-crypto-fe8cbbbc0e68dad845f72ad75c8099b88f7ff049.zip |
Merge branch 'master' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Diffstat (limited to 'crypto/algapi.c')
-rw-r--r-- | crypto/algapi.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c index aa699ff6..9a636f96 100644 --- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -167,6 +167,18 @@ void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list, spawn->alg = NULL; spawns = &inst->alg.cra_users; + + /* + * We may encounter an unregistered instance here, since + * an instance's spawns are set up prior to the instance + * being registered. An unregistered instance will have + * NULL ->cra_users.next, since ->cra_users isn't + * properly initialized until registration. But an + * unregistered instance cannot have any users, so treat + * it the same as ->cra_users being empty. + */ + if (spawns->next == NULL) + break; } } while ((spawns = crypto_more_spawns(alg, &stack, &top, &secondary_spawns))); @@ -897,9 +909,11 @@ int crypto_enqueue_request(struct crypto_queue *queue, int err = -EINPROGRESS; if (unlikely(queue->qlen >= queue->max_qlen)) { - err = -EBUSY; - if (!(request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (!(request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { + err = -ENOSPC; goto out; + } + err = -EBUSY; if (queue->backlog == &queue->list) queue->backlog = &request->list; } |