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-rw-r--r--crypto/blkcipher.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index ca6ef06..4a7e65c 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -450,6 +450,10 @@ static int crypto_init_blkcipher_ops_async(struct crypto_tfm *tfm)
crt->setkey = async_setkey;
crt->encrypt = async_encrypt;
crt->decrypt = async_decrypt;
+ if (!alg->ivsize) {
+ crt->givencrypt = skcipher_null_givencrypt;
+ crt->givdecrypt = skcipher_null_givdecrypt;
+ }
crt->base = __crypto_ablkcipher_cast(tfm);
crt->ivsize = alg->ivsize;
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