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net: dsa: print error on invalid port index
Looking for an -EINVAL all over the dsa code could take hours for inexperienced DSA users. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20210106090915.21439-1-zajec5@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -783,6 +783,8 @@ static int dsa_switch_parse_ports_of(struct dsa_switch *ds,
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goto out_put_node;
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if (reg >= ds->num_ports) {
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dev_err(ds->dev, "port %pOF index %u exceeds num_ports (%zu)\n",
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port, reg, ds->num_ports);
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err = -EINVAL;
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goto out_put_node;
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}
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