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s390/qeth: fix initialization on old HW

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commit 0b698c838e84149b690c7e979f78cccb6f8aa4b9 upstream.

I stumbled over an old OSA model that claims to support DIAG_ASSIST,
but then rejects the cmd to query its DIAG capabilities.

In the old code this was ok, as the returned raw error code was > 0.
Now that we translate the raw codes to errnos, the "rc < 0" causes us
to fail the initialization of the device.

The fix is trivial: don't bail out when the DIAG query fails. Such an
error is not critical, we can still use the device (with a slightly
reduced set of features).

Fixes: 742d4d4083 ("s390/qeth: convert remaining legacy cmd callbacks")
Signed-off-by: Julian Wiedmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Julian Wiedmann 2019-12-23 15:03:26 +01:00 • committed by Greg Kroah-Hartman
commit 0b3e622f8c
1 changed files with 1 additions and 3 deletions
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4
drivers/s390/net/qeth_core_main.c
View file

@ -4968,10 +4968,8 @@ retriable:
}
if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
rc = qeth_query_setdiagass(card);
if (rc < 0) {
if (rc)
QETH_CARD_TEXT_(card, 2, "8err%d", rc);
goto out;
}
}
return 0;
out: