[PATCH 4.19 12/32] net: mvneta: Fix err code path of probe

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

From: Jisheng Zhang <Jisheng.Zhang@synaptics.com>

[ Upstream commit d484e06e25ebb937d841dac02ac1fe76ec7d4ddd ]

Fix below issues in err code path of probe:
1. we don't need to unregister_netdev() because the netdev isn't
registered.
2. when register_netdev() fails, we also need to destroy bm pool for
HWBM case.

Fixes: dc35a10f68d3 ("net: mvneta: bm: add support for hardware buffer management")
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/marvell/mvneta.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -4611,7 +4611,7 @@ static int mvneta_probe(struct platform_
 	err = register_netdev(dev);
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to register\n");
-		goto err_free_stats;
+		goto err_netdev;
 	}
 
 	netdev_info(dev, "Using %s mac address %pM\n", mac_from,
@@ -4622,14 +4622,12 @@ static int mvneta_probe(struct platform_
 	return 0;
 
 err_netdev:
-	unregister_netdev(dev);
 	if (pp->bm_priv) {
 		mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_long, 1 << pp->id);
 		mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_short,
 				       1 << pp->id);
 		mvneta_bm_put(pp->bm_priv);
 	}
-err_free_stats:
 	free_percpu(pp->stats);
 err_free_ports:
 	free_percpu(pp->ports);