free_netdev() already calls netif_napi_del(), no need to call it
explicitly.
It's harmless, but useless.

Remove the call in the error handling path of the probe and in the remove
function.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/net/ethernet/ezchip/nps_enet.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c
index f1eb660aaee2..6389c6b5005c 100644
--- a/drivers/net/ethernet/ezchip/nps_enet.c
+++ b/drivers/net/ethernet/ezchip/nps_enet.c
@@ -627,7 +627,6 @@ static s32 nps_enet_probe(struct platform_device *pdev)
 	return 0;
 
 out_netif_api:
-	netif_napi_del(&priv->napi);
 out_netdev:
 	free_netdev(ndev);
 
@@ -640,7 +639,6 @@ static s32 nps_enet_remove(struct platform_device *pdev)
 	struct nps_enet_priv *priv = netdev_priv(ndev);
 
 	unregister_netdev(ndev);
-	netif_napi_del(&priv->napi);
 	free_netdev(ndev);
 
 	return 0;
-- 
2.34.1

On Wed,  4 Jan 2023 22:05:32 +0100 Christophe JAILLET wrote:
> @@ -640,7 +639,6 @@ static s32 nps_enet_remove(struct platform_device *pdev)
>  	struct nps_enet_priv *priv = netdev_priv(ndev);
>  
>  	unregister_netdev(ndev);
> -	netif_napi_del(&priv->napi);
>  	free_netdev(ndev);

This adds an unused variable warning, which is fixed by the next patch.
Could you remove the @priv variable here already?