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| author | Takashi Iwai <tiwai@suse.de> | 2018-01-19 13:57:33 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-01-19 13:57:33 +0100 |
| commit | c86d95cb6b7ecda7b7d56e40c24b7d8b9bf9159a (patch) | |
| tree | 3d868496a15be09dfb3a471e7b9dce24c0216d89 /crypto/algapi.c | |
| parent | 388fdb8f882af67ff8394d9420c1e0e42ba35619 (diff) | |
| parent | 8f05b9c65d817dd288da5f1c6ecc134b66f8a190 (diff) | |
Merge tag 'asoc-v4.16-3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v4.16
Some final updates for the merge window, this brings in some
improvements to the ACPI GPIO handling for Intel and a bunch of fixes.
Diffstat (limited to 'crypto/algapi.c')
| -rw-r--r-- | crypto/algapi.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c index 60d7366ed343..9a636f961572 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))); |