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Diffstat (limited to 'crypto/shash.c')
| -rw-r--r-- | crypto/shash.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/crypto/shash.c b/crypto/shash.c index 70faf28b2d14..c075b26c2a1d 100644 --- a/crypto/shash.c +++ b/crypto/shash.c @@ -577,6 +577,9 @@ int shash_register_instance(struct crypto_template *tmpl, { int err; + if (WARN_ON(!inst->free)) + return -EINVAL; + err = shash_prepare_alg(&inst->alg); if (err) return err; |