crypto: atmel-sha - fix crash when computing digest on empty message
This patch fixes a crash which occured during the computation of the digest of an empty message. Indeed, when processing an empty message, the atmel_sha_handle_queue() function was never called, hence the dd->req pointer remained uninitialized. Later, when the atmel_sha_final_req() function was called, it used to crash while using this uninitialized dd->req pointer. Hence this patch adds missing initializations of dd->req before calls of the atmel_sha_final_req() function. This bug prevented us from passing the tcrypt test suite on SHA algo. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -939,6 +939,7 @@ static int atmel_sha_final(struct ahash_request *req)
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if (err)
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if (err)
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goto err1;
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goto err1;
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dd->req = req;
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dd->flags |= SHA_FLAGS_BUSY;
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dd->flags |= SHA_FLAGS_BUSY;
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err = atmel_sha_final_req(dd);
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err = atmel_sha_final_req(dd);
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} else {
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} else {
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