linux-kernel - [PATCH] xen-netback: Remove redundant initialization of variable err

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Date:   Wed, 13 Oct 2021 17:51:42 +0100
From:   Colin King <colin.king@...onical.com>
To:     Wei Liu <wei.liu@...nel.org>, Paul Durrant <paul@....org>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        xen-devel@...ts.xenproject.org, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] xen-netback: Remove redundant initialization of variable err

From: Colin Ian King <colin.king@...onical.com>

The variable err is being initialized with a value that is never read, it
is being updated immediately afterwards. The assignment is redundant and
can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/xen-netback/netback.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 32d5bc4919d8..0f7fd159f0f2 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1474,7 +1474,7 @@ int xenvif_map_frontend_data_rings(struct xenvif_queue *queue,
 	struct xen_netif_tx_sring *txs;
 	struct xen_netif_rx_sring *rxs;
 	RING_IDX rsp_prod, req_prod;
-	int err = -ENOMEM;
+	int err;
 
 	err = xenbus_map_ring_valloc(xenvif_to_xenbus_device(queue->vif),
 				     &tx_ring_ref, 1, &addr);
-- 
2.32.0