linux-kernel - [PATCH 3.10 137/268] crypto: api - Clear CRYPTO_ALG

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Date:   Mon, 19 Jun 2017 20:30:36 +0200
From:   Willy Tarreau <w@....eu>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux@...ck-us.net
Cc:     Salvatore Benedetto <salvatore.benedetto@...el.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Willy Tarreau <w@....eu>
Subject: [PATCH 3.10 137/268] crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg

From: Salvatore Benedetto <salvatore.benedetto@...el.com>

commit d6040764adcb5cb6de1489422411d701c158bb69 upstream.

Make sure CRYPTO_ALG_DEAD bit is cleared before proceeding with
the algorithm registration. This fixes qat-dh registration when
driver is restarted

Signed-off-by: Salvatore Benedetto <salvatore.benedetto@...el.com>
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
Signed-off-by: Willy Tarreau <w@....eu>
---
 crypto/algapi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/algapi.c b/crypto/algapi.c
index daf2f65..8ea7a5d 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -337,6 +337,7 @@ 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;
-- 
2.8.0.rc2.1.gbe9624a