net: dsa: print error on invalid port index

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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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Rafał Miłecki 2021-01-06 10:09:15 +01:00 • committed by Jakub Kicinski

parent ede71cae72

commit 8209f5bc3b

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net/dsa/dsa2.c

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