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Re: [PATCH] Correct return codes during racy destruction (3).


  • To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
  • From: Paul Durrant <xadimgnik@xxxxxxxxx>
  • Date: Fri, 2 Dec 2022 18:46:00 +0000
  • Delivery-date: Fri, 02 Dec 2022 18:46:08 +0000
  • List-id: Developer list for the Windows PV Drivers subproject <win-pv-devel.lists.xenproject.org>

On 14/11/2022 11:32, Martin Harvey wrote:
Errors in PnP retun codes found when testing under driver
verifier with mixed VM lifecycle operations. Under some
rare cases, it is possible to get more than one PnP
"remove like" operation. This results in a PnP remove
operation being processed whilst the device is already
in the deleted state.

This patch fixes the immediate cause of the bugfixes,
buy fixing the return code. Device destruction is
unchanged. Investigation into the root cause is still
ongoing.

Signed-off-by: Martin Harvey <martin.harvey@xxxxxxxxxx>

With some small cosmetic fixes, this patch and all similar ones for the other drivers...

Acked-by: Paul Durrant <paul@xxxxxxx>





 


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