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staging: unisys: visorbus: fix vbus info generated for s-Par livedumps

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Previously, the lines describing devices controlled by the visorinput,
visornic, and visorhba drivers (keyboard, mouse, ultravnic, sparvhba) would
be missing from the vbus channel header.  This is important info that is
collected as part of s-Par livedumps, and can be examined via
/sys/bus/visorbus/devices/visorbus<n>/client_bus_info, e.g.:

    $ pwd
    /sys/bus/visorbus/devices
    $ cat visorbus1/client_bus_info
    Client device / client driver info for s-Par Console eartition
                                                 (vbus #4294967295):
       chipset         visorchipset    kernel ver. 4.8.0-rc6-ARCH+
       clientbus       visorbus        kernel ver. 4.8.0-rc6-ARCH+
 -> [2]keyboard        visorinput      kernel ver. 4.8.0-rc6-ARCH+
 -> [3]mouse           visorinput      kernel ver. 4.8.0-rc6-ARCH+

    $ cat visorbus2/client_bus_info
    Client device / client driver info for s-Par IOVM eartition
                                                 (vbus #4294967295):
       chipset         visorchipset    kernel ver. 4.8.0-rc6-ARCH+
       clientbus       visorbus        kernel ver. 4.8.0-rc6-ARCH+
 -> [0]ultravnic       visornic        kernel ver. 4.8.0-rc6-ARCH+
 -> [1]ultravnic       visornic        kernel ver. 4.8.0-rc6-ARCH+
 -> [2]sparvhba        visorhba        kernel ver. 4.8.0-rc6-ARCH+

Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tim Sell 2016-09-27 14:42:22 -04:00 committed by Greg Kroah-Hartman
parent f7a34ff7c0
commit 5990b39e26
1 changed files with 3 additions and 5 deletions
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8
drivers/staging/unisys/visorbus/visorbus_main.c
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@ -796,14 +796,12 @@ fix_vbus_dev_info(struct visor_device *visordev)
if (!visordev->device.driver)
return;
hdr_info = (struct spar_vbus_headerinfo *)visordev->vbus_hdr_info;
if (!hdr_info)
return;
bdev = visorbus_get_device_by_id(bus_no, BUS_ROOT_DEVICE, NULL);
if (!bdev)
return;
hdr_info = (struct spar_vbus_headerinfo *)bdev->vbus_hdr_info;
if (!hdr_info)
return;
visordrv = to_visor_driver(visordev->device.driver);
/*