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authorIngo Molnar <mingo@kernel.org>2020-02-05 08:44:22 +0100
committerIngo Molnar <mingo@kernel.org>2020-02-05 08:44:22 +0100
commitfdff7c21ea00787e3f70a1a00b40b88eb998c6ad (patch)
tree03016a8375e849e2c39dec8a15d660055bb16a8c /drivers/crypto/omap-des.c
parentf1ec3a517b4352e78dbef6b1e591f43202ecb3fe (diff)
parentb3a6082223369203d7e7db7e81253ac761377644 (diff)
Merge branch 'linus' into perf/urgent, to synchronize with upstream
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/crypto/omap-des.c')
-rw-r--r--drivers/crypto/omap-des.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/crypto/omap-des.c b/drivers/crypto/omap-des.c
index 4c4dbc2b377e..8eda43319204 100644
--- a/drivers/crypto/omap-des.c
+++ b/drivers/crypto/omap-des.c
@@ -597,6 +597,7 @@ static int omap_des_crypt_req(struct crypto_engine *engine,
static void omap_des_done_task(unsigned long data)
{
struct omap_des_dev *dd = (struct omap_des_dev *)data;
+ int i;
pr_debug("enter done_task\n");
@@ -615,6 +616,11 @@ static void omap_des_done_task(unsigned long data)
omap_crypto_cleanup(&dd->out_sgl, dd->orig_out, 0, dd->total_save,
FLAGS_OUT_DATA_ST_SHIFT, dd->flags);
+ if ((dd->flags & FLAGS_CBC) && dd->req->iv)
+ for (i = 0; i < 2; i++)
+ ((u32 *)dd->req->iv)[i] =
+ omap_des_read(dd, DES_REG_IV(dd, i));
+
omap_des_finish_req(dd, 0);
pr_debug("exit\n");
@@ -631,10 +637,11 @@ static int omap_des_crypt(struct skcipher_request *req, unsigned long mode)
!!(mode & FLAGS_ENCRYPT),
!!(mode & FLAGS_CBC));
- if (!IS_ALIGNED(req->cryptlen, DES_BLOCK_SIZE)) {
- pr_err("request size is not exact amount of DES blocks\n");
+ if (!req->cryptlen)
+ return 0;
+
+ if (!IS_ALIGNED(req->cryptlen, DES_BLOCK_SIZE))
return -EINVAL;
- }
dd = omap_des_find_dev(ctx);
if (!dd)