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-rw-r--r--crypto/xts.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/crypto/xts.c b/crypto/xts.c
index f6fd43f..26ba583 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -35,16 +35,11 @@ static int setkey(struct crypto_tfm *parent, const u8 *key,
{
struct priv *ctx = crypto_tfm_ctx(parent);
struct crypto_cipher *child = ctx->tweak;
- u32 *flags = &parent->crt_flags;
int err;
- /* key consists of keys of equal size concatenated, therefore
- * the length must be even */
- if (keylen % 2) {
- /* tell the user why there was an error */
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
+ err = xts_check_key(parent, key, keylen);
+ if (err)
+ return err;
/* we need two cipher instances: one to compute the initial 'tweak'
* by encrypting the IV (usually the 'plain' iv) and the other
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