crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg

Salvatore Benedetto · herbertx · commit d6040764adcb · 2017-01-23T22:41:32.000+08:00
Make sure CRYPTO_ALG_DEAD bit is cleared before proceeding with
the algorithm registration. This fixes qat-dh registration when
driver is restarted

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Salvatore Benedetto &lt;salvatore.benedetto@intel.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
diff --git a/crypto/algapi.c b/crypto/algapi.c
@@ -356,6 +356,7 @@ int crypto_register_alg(struct crypto_alg *alg)
 	struct crypto_larval *larval;
 	int err;
 
+	alg->cra_flags &= ~CRYPTO_ALG_DEAD;
 	err = crypto_check_alg(alg);
 	if (err)
 		return err;
