add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/net/arcnet/com20020-pci.c
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@@ -136,6 +136,9 @@
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 		return -ENOMEM;
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 	ci = (struct com20020_pci_card_info *)id->driver_data;
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+	if (!ci)
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+		return -EINVAL;
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+
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 	priv->ci = ci;
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 	mm = &ci->misc_map;
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..
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@@ -291,7 +294,7 @@
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 		unregister_netdev(dev);
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 		free_irq(dev->irq, dev);
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-		free_netdev(dev);
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+		free_arcdev(dev);
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 	}
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 }
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