This is a note to let you know that I've just added the patch titled crypto: atmel - only treat EBUSY as transient if backlog to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: crypto-atmel-only-treat-ebusy-as-transient-if-backlog.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 1606043f214f912a52195293614935811a6e3e53 Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> Date: Wed, 28 Jun 2017 10:22:03 +0300 Subject: crypto: atmel - only treat EBUSY as transient if backlog From: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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; /* Patches currently in stable-queue which might be from gilad@xxxxxxxxxxxxx are queue-3.18/crypto-atmel-only-treat-ebusy-as-transient-if-backlog.patch