linux-kernel - [PATCH 4.4 05/29] crypto: api - Clear CRYPTO_ALG

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Message-Id: <20170207124458.913599950@linuxfoundation.org>
Date:   Tue,  7 Feb 2017 13:45:34 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Salvatore Benedetto <salvatore.benedetto@...el.com>,
        Herbert Xu <herbert@...dor.apana.org.au>
Subject: [PATCH 4.4 05/29] crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg

4.4-stable 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: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 crypto/algapi.c |    1 +
 1 file changed, 1 insertion(+)

--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -357,6 +357,7 @@ 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;