Commit 81cc2ef2 authored Jun 28, 2017 by Gilad Ben-Yossef Committed by Greg Kroah-Hartman Jul 21, 2017

crypto: atmel - only treat EBUSY as transient if backlog



commit 1606043f214f912a52195293614935811a6e3e53 upstream.

The Atmel SHA driver was treating -EBUSY as indication of queueing
to backlog without checking that backlog is enabled for the request.

Fix it by checking request flags.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 2ff2cc76

drivers/crypto/atmel-sha.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1000,7 +1000,9 @@ static int atmel_sha_finup(struct ahash_request *req)
		ctx->flags \|= SHA_FLAGS_FINUP;

		err1 = atmel_sha_update(req);
		if (err1 == -EINPROGRESS \|\| err1 == -EBUSY)
		if (err1 == -EINPROGRESS \|\|
		(err1 == -EBUSY && (ahash_request_flags(req) &
		CRYPTO_TFM_REQ_MAY_BACKLOG)))
		return err1;

		/*