Changing the state of a SCSI device via sysfs into "cancel" or "deleted" prevents removal of these devices by scsi_remove_host(). Hence do not allow this.
Signed-off-by: Bart Van Assche <[email protected]> Cc: Tejun Heo <[email protected]> Cc: James Bottomley <[email protected]> Cc: Mike Christie <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: David Milburn <[email protected]> --- drivers/scsi/scsi_sysfs.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 1711617..292df85 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -605,10 +605,8 @@ store_state_field(struct device *dev, struct device_attribute *attr, break; } } - if (!state) - return -EINVAL; - - if (scsi_device_set_state(sdev, state)) + if (state == 0 || state == SDEV_CANCEL || state == SDEV_DEL || + scsi_device_set_state(sdev, state)) return -EINVAL; return count; } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
