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crypto: xts - Fix atomic sleep when walking skcipher

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When we perform a walk in the completion function, we need to ensure
that it is atomic.

Reported-by: [email protected]
Fixes: 78105c7e76 ("crypto: xts - Drop use of auxiliary buffer")
Cc: <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Acked-by: Ondrej Mosnacek <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Herbert Xu 2019-04-15 14:35:19 +08:00
commit 44427c0fbc
1 changed files with 5 additions and 1 deletions
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6
crypto/xts.c
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@ -137,8 +137,12 @@ static void crypt_done(struct crypto_async_request *areq, int err)
{
struct skcipher_request *req = areq->data;
if (!err)
if (!err) {
struct rctx *rctx = skcipher_request_ctx(req);
rctx->subreq.base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
err = xor_tweak_post(req);
}
skcipher_request_complete(req, err);
}