weiping zhang 92227b8d3d
scsi: scsi-sysfs: Adjust error returned for adapter reset request ...
If scsi_host_template->host_reset is NULL and the user requests an
adapter reset through
echo adapter > /sys/class/scsi_host/hostx/host_reset
-EINVAL will be returned even though the "adapter" argument is perfectly
valid.
Change this so that we only return -EINVAL if the provided string is
invalid. If the host does not implement a ->host_reset function we'll
return -EOPNOTSUPP.
[mkp: tweaked patch description]
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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