[PATCH 5.8 168/186] dm crypt: Initialize crypto wait structures

[Greg Kroah-Hartman]

From: Damien Le Moal <damien.lem...@wdc.com>

commit 7785a9e4c228db6d01086a52d5685cd7336a08b7 upstream.

Use the DECLARE_CRYPTO_WAIT() macro to properly initialize the crypto
wait structures declared on stack before their use with
crypto_wait_req().

Fixes: 39d13a1ac41d ("dm crypt: reuse eboiv skcipher for IV generation")
Fixes: bbb1658461ac ("dm crypt: Implement Elephant diffuser for Bitlocker 
compatibility")
Cc: sta...@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lem...@wdc.com>
Signed-off-by: Mike Snitzer <snit...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/md/dm-crypt.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -736,7 +736,7 @@ static int crypt_iv_eboiv_gen(struct cry
        u8 buf[MAX_CIPHER_BLOCKSIZE] __aligned(__alignof__(__le64));
        struct skcipher_request *req;
        struct scatterlist src, dst;
-       struct crypto_wait wait;
+       DECLARE_CRYPTO_WAIT(wait);
        int err;
 
        req = skcipher_request_alloc(any_tfm(cc), GFP_NOIO);
@@ -933,7 +933,7 @@ static int crypt_iv_elephant(struct cryp
        u8 *es, *ks, *data, *data2, *data_offset;
        struct skcipher_request *req;
        struct scatterlist *sg, *sg2, src, dst;
-       struct crypto_wait wait;
+       DECLARE_CRYPTO_WAIT(wait);
        int i, r;
 
        req = skcipher_request_alloc(elephant->tfm, GFP_NOIO);