linux-kernel - [PATCH v1] crypto: camm/qi - Use ERR_CAST() to return error-valued pointer

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Message-Id: <20240906104327.72221-1-chenyufan@vivo.com>
Date: Fri,  6 Sep 2024 18:43:24 +0800
From: Chen Yufan <chenyufan@...o.com>
To: Horia Geantă <horia.geanta@....com>,
	Pankaj Gupta <pankaj.gupta@....com>,
	Gaurav Jain <gaurav.jain@....com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: opensource.kernel@...o.com,
	Chen Yufan <chenyufan@...o.com>
Subject: [PATCH v1] crypto: camm/qi - Use ERR_CAST() to return error-valued pointer

Instead of directly casting and returning (void *) pointer, use ERR_CAST
to explicitly return an error-valued pointer. This makes the error handling
more explicit and improves code clarity.

Signed-off-by: Chen Yufan <chenyufan@...o.com>
---
 drivers/crypto/caam/caamalg_qi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c
index 743ce50c14f2..13347dfecf7a 100644
--- a/drivers/crypto/caam/caamalg_qi.c
+++ b/drivers/crypto/caam/caamalg_qi.c
@@ -961,7 +961,7 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
 
 	drv_ctx = get_drv_ctx(ctx, encrypt ? ENCRYPT : DECRYPT);
 	if (IS_ERR(drv_ctx))
-		return (struct aead_edesc *)drv_ctx;
+		return ERR_CAST(drv_ctx);
 
 	/* allocate space for base edesc and hw desc commands, link tables */
 	edesc = qi_cache_alloc(flags);
@@ -1271,7 +1271,7 @@ static struct skcipher_edesc *skcipher_edesc_alloc(struct skcipher_request *req,
 
 	drv_ctx = get_drv_ctx(ctx, encrypt ? ENCRYPT : DECRYPT);
 	if (IS_ERR(drv_ctx))
-		return (struct skcipher_edesc *)drv_ctx;
+		return ERR_CAST(drv_ctx);
 
 	src_nents = sg_nents_for_len(req->src, req->cryptlen);
 	if (unlikely(src_nents < 0)) {
-- 
2.39.0