linux-kernel - [PATCH net-next] net: bgmac: remove set but not used variable 'err'

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Date:   Sat, 1 Sep 2018 03:13:10 +0000
From:   YueHaibing <yuehaibing@...wei.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Colin Ian King <colin.king@...onical.com>
CC:     YueHaibing <yuehaibing@...wei.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: [PATCH net-next] net: bgmac: remove set but not used variable 'err'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/broadcom/bgmac.c: In function 'bgmac_dma_alloc':
drivers/net/ethernet/broadcom/bgmac.c:619:6: warning:
 variable 'err' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/net/ethernet/broadcom/bgmac.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 4c94d92..cabc8e4 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -616,7 +616,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
 	static const u16 ring_base[] = { BGMAC_DMA_BASE0, BGMAC_DMA_BASE1,
 					 BGMAC_DMA_BASE2, BGMAC_DMA_BASE3, };
 	int size; /* ring size: different for Tx and Rx */
-	int err;
 	int i;
 
 	BUILD_BUG_ON(BGMAC_MAX_TX_RINGS > ARRAY_SIZE(ring_base));
@@ -666,7 +665,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
 		if (!ring->cpu_base) {
 			dev_err(bgmac->dev, "Allocation of RX ring 0x%X failed\n",
 				ring->mmio_base);
-			err = -ENOMEM;
 			goto err_dma_free;
 		}