Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 3.18 22/28] crypto: atmel - only treat EBUSY as transient if backlog | Date | Wed, 19 Jul 2017 13:15:50 +0200 |
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3.18-stable review patch. If anyone has any objections, please let me know.
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From: Gilad Ben-Yossef <gilad@benyossef.com>
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>
--- drivers/crypto/atmel-sha.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/crypto/atmel-sha.c +++ b/drivers/crypto/atmel-sha.c @@ -957,7 +957,9 @@ static int atmel_sha_finup(struct ahash_ 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; /*
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