s390/qeth: fix error handling in checksum cmd callback

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[ Upstream commit ad3cbf6133 ]

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

Fixes: c9475369bd ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Julian Wiedmann 2017-12-20 18:07:18 +01:00 • committed by Greg Kroah-Hartman

parent ff1ff3815c

commit f38ffe325b

1 changed files with 8 additions and 1 deletions

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drivers/s390/net/qeth_core_main.c

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