[ Upstream commit
d1d6351e37aac14b32a291731d0855996c459d11 ]
In case of a zero-length input, exit gracefully from sahara_aes_crypt().
Fixes:
5de8875281e1 ("crypto: sahara - Add driver for SAHARA2 accelerator.")
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
struct sahara_dev *dev = dev_ptr;
int err = 0;
+ if (!req->cryptlen)
+ return 0;
+
if (unlikely(ctx->keylen != AES_KEYSIZE_128))
return sahara_aes_fallback(req, mode);