linux-kernel - [PATCH] crypto: mediatek - Fix wrong return value in mtk_desc_ring

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Message-Id: <20200802111532.5110-1-tianjia.zhang@linux.alibaba.com>
Date:   Sun,  2 Aug 2020 19:15:32 +0800
From:   Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
To:     herbert@...dor.apana.org.au, davem@...emloft.net,
        matthias.bgg@...il.com, swboyd@...omium.org, yuehaibing@...wei.com,
        tianjia.zhang@...ux.alibaba.com, ryder.lee@...iatek.com
Cc:     linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        tianjia.zhang@...baba.com
Subject: [PATCH] crypto: mediatek - Fix wrong return value in mtk_desc_ring_alloc()

In case of memory allocation failure, a negative error code should
be returned.

Fixes: 785e5c616c849 ("crypto: mediatek - Add crypto driver support for some MediaTek chips")
Cc: Ryder Lee <ryder.lee@...iatek.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
---
 drivers/crypto/mediatek/mtk-platform.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/mediatek/mtk-platform.c b/drivers/crypto/mediatek/mtk-platform.c
index 7e3ad085b5bd..ef4339e84d03 100644
--- a/drivers/crypto/mediatek/mtk-platform.c
+++ b/drivers/crypto/mediatek/mtk-platform.c
@@ -442,7 +442,7 @@ static void mtk_desc_dma_free(struct mtk_cryp *cryp)
 static int mtk_desc_ring_alloc(struct mtk_cryp *cryp)
 {
 	struct mtk_ring **ring = cryp->ring;
-	int i, err = ENOMEM;
+	int i;
 
 	for (i = 0; i < MTK_RING_MAX; i++) {
 		ring[i] = kzalloc(sizeof(**ring), GFP_KERNEL);
@@ -476,7 +476,7 @@ static int mtk_desc_ring_alloc(struct mtk_cryp *cryp)
 				  ring[i]->cmd_base, ring[i]->cmd_dma);
 		kfree(ring[i]);
 	}
-	return err;
+	return -ENOMEM;
 }
 
 static int mtk_crypto_probe(struct platform_device *pdev)
-- 
2.26.2