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-rw-r--r--crypto/aead.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/crypto/aead.c b/crypto/aead.c
index 7707d3223101..16991095270d 100644
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -288,6 +288,9 @@ int aead_register_instance(struct crypto_template *tmpl,
{
int err;
+ if (WARN_ON(!inst->free))
+ return -EINVAL;
+
err = aead_prepare_alg(&inst->alg);
if (err)
return err;