linux-kernel - [PATCH 3.12 027/113] crypto: api - Clear CRYPTO_ALG

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Message-Id: <913feded8b0f55cf183eaffba3eb15d7dd179749.1488791430.git.jslaby@suse.cz>
Date:   Mon,  6 Mar 2017 10:10:51 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Salvatore Benedetto <salvatore.benedetto@...el.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 027/113] crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg

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

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

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: Jiri Slaby <jslaby@...e.cz>
---
 crypto/algapi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/algapi.c b/crypto/algapi.c
index daf2f653b131..8ea7a5dc3839 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;
-- 
2.12.0