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| author | weiping zhang <zhangweiping@didichuxing.com> | 2017-08-10 19:52:17 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-08-25 04:29:06 +0200 |
| commit | 92227b8d3d7fd0c9a5b78c3967a756e83a43b36d (patch) | |
| tree | bda123f86f2955c302beda0245a926da16685ac2 /drivers/scsi/scsi_sysfs.c | |
| parent | scsi: ch: add refcounting (diff) | |
| download | linux-92227b8d3d7fd0c9a5b78c3967a756e83a43b36d.tar.xz linux-92227b8d3d7fd0c9a5b78c3967a756e83a43b36d.zip | |
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>
Diffstat (limited to 'drivers/scsi/scsi_sysfs.c')
| -rw-r--r-- | drivers/scsi/scsi_sysfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index d6984df71f1c..41891db20108 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -303,6 +303,8 @@ store_host_reset(struct device *dev, struct device_attribute *attr, if (sht->host_reset) ret = sht->host_reset(shost, type); + else + ret = -EOPNOTSUPP; exit_store_host_reset: if (ret == 0) |