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-rw-r--r--drivers/md/dm-crypt.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 8a03b3590733..4b5c54d0c51a 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -652,13 +652,7 @@ static int crypt_iv_tcw_whitening(struct crypt_config *cc,
/* calculate crc32 for every 32bit part and xor it */
desc->tfm = tcw->crc32_tfm;
for (i = 0; i < 4; i++) {
- r = crypto_shash_init(desc);
- if (r)
- goto out;
- r = crypto_shash_update(desc, &buf[i * 4], 4);
- if (r)
- goto out;
- r = crypto_shash_final(desc, &buf[i * 4]);
+ r = crypto_shash_digest(desc, &buf[i * 4], 4, &buf[i * 4]);
if (r)
goto out;
}