xen-netback: Remove redundant initialization of variable err

Commit Message

Colin King Oct. 13, 2021, 4:51 p.m. UTC

From: Colin Ian King <[e-mail]>

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 <[e-mail]>
---
 drivers/net/xen-netback/netback.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

[e-mail] Oct. 15, 2021, 10:10 a.m. UTC | #1

Hello:

This patch was applied to netdev/net-next.git (master)
by David S. Miller <[e-mail]>:

On Wed, 13 Oct 2021 17:51:42 +0100 you wrote:
> From: Colin Ian King <[e-mail]>
> 
> 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 <[e-mail]>
> 
> [...]

Here is the summary with links:
  - xen-netback: Remove redundant initialization of variable err
    https://git.kernel.org/netdev/net-next/c/bacc8daf97d4

You are awesome, thank you!
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Patch

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);