linux-kernel - [PATCH 3.2 123/199] crypto: api - Clear CRYPTO_ALG

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Message-ID: <lsq.1489146370.860129720@decadent.org.uk>
Date:   Fri, 10 Mar 2017 11:46:10 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Herbert Xu" <herbert@...dor.apana.org.au>,
        "Salvatore Benedetto" <salvatore.benedetto@...el.com>
Subject: [PATCH 3.2 123/199] crypto: api - Clear CRYPTO_ALG_DEAD bit
 before registering an alg

3.2.87-rc1 review patch.  If anyone has any objections, please let me know.

------------------

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: Ben Hutchings <ben@...adent.org.uk>
---
 crypto/algapi.c | 1 +
 1 file changed, 1 insertion(+)

--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -354,6 +354,7 @@ int crypto_register_alg(struct crypto_al
 	struct crypto_larval *larval;
 	int err;
 
+	alg->cra_flags &= ~CRYPTO_ALG_DEAD;
 	err = crypto_check_alg(alg);
 	if (err)
 		return err;