net: cxgb3: add error handling for sysfs_create_group

When sysfs_create_group fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling sysfs_create_group.
Signed-off-by: NZhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c

@@ -3362,10 +3362,17 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	err = sysfs_create_group(&adapter->port[0]->dev.kobj,
 				 &cxgb3_attr_group);
+	if (err) {
+		dev_err(&pdev->dev, "cannot create sysfs group\n");
+		goto out_close_led;
+	}
 
 	print_port_info(adapter, ai);
 	return 0;
 
+out_close_led:
+	t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL, 0);
+
 out_free_dev:
 	iounmap(adapter->regs);
 	for (i = ai->nports0 + ai->nports1 - 1; i >= 0; --i)