Commit 92227b8d authored by weiping zhang's avatar weiping zhang Committed by Martin K. Petersen

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: default avatarweiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 085e5676
...@@ -303,6 +303,8 @@ store_host_reset(struct device *dev, struct device_attribute *attr, ...@@ -303,6 +303,8 @@ store_host_reset(struct device *dev, struct device_attribute *attr,
if (sht->host_reset) if (sht->host_reset)
ret = sht->host_reset(shost, type); ret = sht->host_reset(shost, type);
else
ret = -EOPNOTSUPP;
exit_store_host_reset: exit_store_host_reset:
if (ret == 0) if (ret == 0)
......
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