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crypto: atmel - only treat EBUSY as transient if backlog

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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.

Cc: <[email protected]>
Signed-off-by: Gilad Ben-Yossef <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Gilad Ben-Yossef 2017-06-28 10:22:03 +03:00 • committed by Herbert Xu
commit 1606043f21
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;
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;
/*