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crypto: atmel - only treat EBUSY as transient if backlog

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commit 1606043f21 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>
This commit is contained in:
Gilad Ben-Yossef
2017-06-28 10:22:03 +03:00
committed by Greg Kroah-Hartman
parent a7439186c9
commit d7e274720a
1 changed files with 3 additions and 1 deletions
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4
drivers/crypto/atmel-sha.c
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@@ -1204,7 +1204,9 @@ static int atmel_sha_finup(struct ahash_request *req)
ctx->flags |= SHA_FLAGS_FINUP; ctx->flags |= SHA_FLAGS_FINUP;
err1 = atmel_sha_update(req); 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; return err1;
/* /*