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H A Dqeth_core_main.cad3cbf61 Wed Dec 20 11:07:18 CST 2017 Julian Wiedmann <jwi@linux.vnet.ibm.com> s390/qeth: fix error handling in checksum cmd callback

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

Fixes: c9475369bd2b ("s390/qeth: rework RX/TX checksum offload")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ad3cbf61 Wed Dec 20 11:07:18 CST 2017 Julian Wiedmann <jwi@linux.vnet.ibm.com> s390/qeth: fix error handling in checksum cmd callback

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

Fixes: c9475369bd2b ("s390/qeth: rework RX/TX checksum offload")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>