s390/qeth: fix error handling in adapter command callbacks

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Make sure to check both return code fields before(!) processing the
command response. Otherwise we risk operating on invalid data.

This matches an earlier fix for SETASSPARMS commands, see
commit ad3cbf6133 ("s390/qeth: fix error handling in checksum cmd callback").

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Julian Wiedmann 2018-04-19 12:52:06 +02:00 • committed by David S. Miller

parent 83beed7b2b

commit 686c97ee29

1 changed files with 37 additions and 48 deletions

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69

drivers/s390/net/qeth_core_main.c

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