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crypto: stm32/hash - Fix hmac issue more than 256 bytes

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commit 0acabecebc 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: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lionel Debieve
2019-06-28 13:26:54 +02:00
committed by Greg Kroah-Hartman
parent be41df88a5
commit c7f92e45fe
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/stm32/stm32-hash.c
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@@ -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))