[PATCH 3/3] crypto: inside-secure - wait for the request to complete if in the backlog

[Antoine Tenart]

This patch updates the safexcel_hmac_init_pad() function to also wait
for completion when the digest return code is -EBUSY, as it would mean
the request is in the backlog to be processed later.

Fixes: 1b44c5a60c13 ("crypto: inside-secure - add SafeXcel EIP197 crypto engine 
driver")
Suggested-by: Ofer Heifetz <of...@marvell.com>
Signed-off-by: Antoine Tenart <antoine.ten...@bootlin.com>
---
 drivers/crypto/inside-secure/safexcel_hash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/inside-secure/safexcel_hash.c 
b/drivers/crypto/inside-secure/safexcel_hash.c
index 4953a2a86c10..77268c9f1620 100644
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -842,7 +842,7 @@ static int safexcel_hmac_init_pad(struct ahash_request 
*areq,
                init_completion(&result.completion);
 
                ret = crypto_ahash_digest(areq);
-               if (ret == -EINPROGRESS) {
+               if (ret == -EINPROGRESS || ret == -EBUSY) {
                        wait_for_completion_interruptible(&result.completion);
                        ret = result.error;
                }
-- 
2.14.3