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Commit c7f92e45 authored by Lionel Debieve's avatar Lionel Debieve Committed by Greg Kroah-Hartman
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crypto: stm32/hash - Fix hmac issue more than 256 bytes 



commit 0acabecebc912b3ba06289e4ef40476acc499a37 upstream.

Correct condition for the second hmac loop. Key must be only
set in the first loop. Initial condition was wrong,
HMAC_KEY flag was not properly checked.

Signed-off-by: default avatarLionel Debieve <lionel.debieve@st.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent be41df88

drivers/crypto/stm32/stm32-hash.c

+1 −1
Original line number Diff line number Diff line
@@ -365,7 +365,7 @@ static int stm32_hash_xmit_cpu(struct stm32_hash_dev *hdev, 
		return -ETIMEDOUT;



	if ((hdev->flags & HASH_FLAGS_HMAC) &&

	    (hdev->flags & ~HASH_FLAGS_HMAC_KEY)) {

	    (!(hdev->flags & HASH_FLAGS_HMAC_KEY))) {

		hdev->flags |= HASH_FLAGS_HMAC_KEY;

		stm32_hash_write_key(hdev);

		if (stm32_hash_wait_busy(hdev))