From: Ovidiu Panait <ovidiu.panait@windriver.com>
Date: Sun, 24 Dec 2023 08:21:34 +0000 (+0200)
Subject: crypto: sahara - improve error handling in sahara_sha_process()
X-Git-Tag: v5.15.148~263
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=2dc0f23ac4c69bde1a9f35262e4b6af53331f041;p=thirdparty%2Fkernel%2Fstable.git

crypto: sahara - improve error handling in sahara_sha_process()

[ Upstream commit 5deff027fca49a1eb3b20359333cf2ae562a2343 ]

sahara_sha_hw_data_descriptor_create() returns negative error codes on
failure, so make sure the errors are correctly handled / propagated.

Fixes: 5a2bb93f5992 ("crypto: sahara - add support for SHA1/256")
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index a5c40ef6d8af6..434c7e17d2736 100644
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -988,7 +988,10 @@ static int sahara_sha_process(struct ahash_request *req)
 		return ret;
 
 	if (rctx->first) {
-		sahara_sha_hw_data_descriptor_create(dev, rctx, req, 0);
+		ret = sahara_sha_hw_data_descriptor_create(dev, rctx, req, 0);
+		if (ret)
+			return ret;
+
 		dev->hw_desc[0]->next = 0;
 		rctx->first = 0;
 	} else {
@@ -996,7 +999,10 @@ static int sahara_sha_process(struct ahash_request *req)
 
 		sahara_sha_hw_context_descriptor_create(dev, rctx, req, 0);
 		dev->hw_desc[0]->next = dev->hw_phys_desc[1];
-		sahara_sha_hw_data_descriptor_create(dev, rctx, req, 1);
+		ret = sahara_sha_hw_data_descriptor_create(dev, rctx, req, 1);
+		if (ret)
+			return ret;
+
 		dev->hw_desc[1]->next = 0;
 	}