linux-kernel - [PATCH linux-next] octeontx2-af: Remove redundant assignment operations

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Date:   Thu, 21 Oct 2021 06:50:19 +0000
From:   luo penghao <cgel.zte@...il.com>
To:     SimonHorman <horms@...nel.org>
Cc:     Mirko Lindner <mlindner@...vell.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, luo penghao <luo.penghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] octeontx2-af: Remove redundant assignment operations

The variable err will be reassigned on subsequent branches, and this
assignment does not perform related value operations.

clang_analyzer complains as follows:

drivers/net/ethernet/marvell/sky2.c:4988: warning:

Although the value stored to 'err' is used in the enclosing expression,
the value is never actually read from 'err'.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: luo penghao <luo.penghao@....com.cn>
---
 drivers/net/ethernet/marvell/sky2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index 8b8bff5..33558aa 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -4985,7 +4985,7 @@ static int sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_set_master(pdev);
 
 	if (sizeof(dma_addr_t) > sizeof(u32) &&
-	    !(err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)))) {
+	    !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
 		using_dac = 1;
 		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
 		if (err < 0) {
-- 
2.15.2