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crypto: mediatek - only treat EBUSY as transient if backlog

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The 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: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Vic Wu <vic.wu@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ryder Lee 2019-08-28 14:37:14 +08:00 committed by Herbert Xu
parent e049ff5af0
commit f271ea9fe1
1 changed files with 3 additions and 1 deletions
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4
drivers/crypto/mediatek/mtk-sha.c
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@ -778,7 +778,9 @@ static int mtk_sha_finup(struct ahash_request *req)
ctx->flags |= SHA_FLAGS_FINUP;
err1 = mtk_sha_update(req);
if (err1 == -EINPROGRESS || err1 == -EBUSY)
if (err1 == -EINPROGRESS ||
(err1 == -EBUSY && (ahash_request_flags(req) &
CRYPTO_TFM_REQ_MAY_BACKLOG)))
return err1;
/*
* final() has to be always called to cleanup resources