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[PATCH 4.4 05/29] crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg

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  [PATCH 4.4 05/29] crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-02-07 13:50 +0100

#1575628 — [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@intel.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@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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;

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