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 4.9-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-4.9 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
@@ -1000,7 +1000,9 @@ 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-4.9/crypto-atmel-only-treat-ebusy-as-transient-if-backlog.patch