| Message ID | 20180213082657.4759-5-antoine.tenart@bootlin.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Herbert Xu |
| Headers | show |
diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c index 8fac23b78da5..2951101e1831 100644 --- a/drivers/crypto/inside-secure/safexcel_hash.c +++ b/drivers/crypto/inside-secure/safexcel_hash.c @@ -184,7 +184,7 @@ static int safexcel_ahash_send_req(struct crypto_async_request *async, int ring, int i, queued, len, cache_len, extra, n_cdesc = 0, ret = 0; queued = len = req->len - req->processed; - if (queued < crypto_ahash_blocksize(ahash)) + if (queued <= crypto_ahash_blocksize(ahash)) cache_len = queued; else cache_len = queued - areq->nbytes;
This patch fixes the cache length computation as cache_len could end up being a negative value. The check between the queued size and the block size is updated to reflect the caching mechanism which can cache up to a full block size (included!). Fixes: 809778e02cd4 ("crypto: inside-secure - fix hash when length is a multiple of a block") Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com> --- drivers/crypto/inside-secure/safexcel_hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)