diff mbox series

[3/5] crypto: mediatek: only treat EBUSY as transient if backlog

Message ID 20190828063716.22689-3-vic.wu@mediatek.com (mailing list archive)
State New, archived
Headers show
Series [1/5] crypto: mediatek: move mtk_aes_find_dev() to the right place | expand

Commit Message

Vic Wu Aug. 28, 2019, 6:37 a.m. UTC 
From: Ryder Lee <ryder.lee@mediatek.com>

The driver was treating -EBUSY as indication of queueing to backlog
without checking that backlog is enabled for the request.

Fix it by checking request flags.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Vic Wu <vic.wu@mediatek.com>
---
 drivers/crypto/mediatek/mtk-sha.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/crypto/mediatek/mtk-sha.c b/drivers/crypto/mediatek/mtk-sha.c
index 2226f12d..1ecef3b5 100644
--- a/drivers/crypto/mediatek/mtk-sha.c
+++ b/drivers/crypto/mediatek/mtk-sha.c
@@ -781,7 +781,9 @@  static int mtk_sha_finup(struct ahash_request *req)
 	ctx->flags |= SHA_FLAGS_FINUP;
 
 	err1 = mtk_sha_update(req);
-	if (err1 == -EINPROGRESS || err1 == -EBUSY)
+	if (err1 == -EINPROGRESS ||
+	    (err1 == -EBUSY && (ahash_request_flags(req) &
+				CRYPTO_TFM_REQ_MAY_BACKLOG)))
 		return err1;
 	/*
 	 * final() has to be always called to cleanup resources