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qeth: Fix invalid router settings handling

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Give a bad return code when specifying a router setting that is either
invalid or not support on the respective device type. In addition, fall back
the previous setting instead of silently switching back to 'no routing'.

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Raspl
2013-03-18 20:04:43 +00:00
committed by David S. Miller
parent 82f77cf970
commit 82e2e782a3
2 changed files with 13 additions and 6 deletions
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2
drivers/s390/net/qeth_l3_sys.c
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@@ -87,6 +87,8 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card,
rc = qeth_l3_setrouting_v6(card);
}
out:
if (rc)
route->type = old_route_type;
mutex_unlock(&card->conf_mutex);
return rc ? rc : count;
}