Re: [PATCH] Drivers: hv: util: move waiting for release to hv_utils_transport itself

From: Stephen Hemminger
Date: Thu Mar 02 2017 - 11:55:47 EST


On Thu, 2 Mar 2017 10:47:49 +0100
Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> wrote:

> Waiting for release_event in all three drivers introduced issues on release
> as on_reset() hook is not always called. E.g. if the device was never
> opened we will never get the completion.
>
> Move the waiting code to hvutil_transport_destroy() and make sure it is
> only called when the device is open. hvt->lock serialization should
> guarantee the absence of races.
>
> Fixes: 5a66fecbf6aa ("Drivers: hv: util: kvp: Fix a rescind processing issue")
> Fixes: 20951c7535b5 ("Drivers: hv: util: Fcopy: Fix a rescind processing issue")
> Fixes: d77044d142e9 ("Drivers: hv: util: Backup: Fix a rescind processing issue")
> Reported-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
> Tested-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
> Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>

Acked-by: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>