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staging: unisys: Don't hold device responses until driver loads 

Currently if a driver is not loaded for a device, we will not
respond to the device create until it is done. This causes
s-Par to not mark the partition running if the driver for the
device is not loaded. Since there are several devices that
could be assigned to a guest that don't have an actual
driver this will cause us to never go running.

If the device driver is loaded, we WILL continue to only
respond to the device PAUSE message when the device driver
has responded that it is done with the device.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Kershner 2015-06-12 16:46:08 -04:00 committed by Greg Kroah-Hartman
parent 5e54654c41
commit 86ea8acc6b
1 changed files with 7 additions and 21 deletions
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28
drivers/staging/unisys/visorbus/visorbus_main.c
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@ -70,7 +70,6 @@ static const struct attribute_group *visorbus_bus_groups[] = {
NULL,
};
/** This describes the TYPE of bus.
* (Don't confuse this with an INSTANCE of the bus.)
*/
@ -745,19 +744,6 @@ visordriver_probe_device(struct device *xdev)
away:
if (rc != 0)
put_device(&dev->device);
/* We could get here more than once if the child driver module is
* unloaded and re-loaded while devices are present. That's why we
* need a flag to be sure that we only respond to the device_create
* once. We cannot respond to the device_create prior to here,
* because until we call drv->probe() above, the channel has not been
* initialized.
*/
if (!dev->responded_to_device_create) {
dev->responded_to_device_create = true;
if (chipset_responders.device_create)
(*chipset_responders.device_create)(dev, rc);
}
return rc;
}
@ -1305,15 +1291,15 @@ chipset_device_create(struct visor_device *dev_info)
POSTCODE_SEVERITY_INFO);
rc = create_visor_device(dev_info);
if (rc < 0) {
if (chipset_responders.device_create)
chipset_responders.device_create(dev_info, rc);
if (rc < 0)
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no,
POSTCODE_SEVERITY_ERR);
if (chipset_responders.device_create)
(*chipset_responders.device_create)(dev_info, rc);
}
POSTCODE_LINUX_4(DEVICE_CREATE_SUCCESS_PC, dev_no, bus_no,
POSTCODE_SEVERITY_INFO);
else
POSTCODE_LINUX_4(DEVICE_CREATE_SUCCESS_PC, dev_no, bus_no,
POSTCODE_SEVERITY_INFO);
}
static void