[lkml]   [2017]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [Part2 PATCH v5.2 12.2/31] crypto: ccp: Add Secure Encrypted Virtualization (SEV) command support
On Thu, Oct 12, 2017 at 04:11:18PM -0500, Brijesh Singh wrote:
> The sev_exit() will be called for all the psp_device instance. we need
> to set psp_misc_dev = NULL after deregistering the device.
> if (psp_misc_dev) {
>   misc_deregister(psp_misc_dev);
>    psp_misc_dev = NULL;

Right, except we assign that misc device to every psp device:

psp->sev_misc = psp_misc_dev;

so the question now is, how do you want this to work: the misc device
should be destroyed after the last psp device is destroyed or how?

Because after the first:

psp_misc_dev = NULL;

the respective psp->sev_misc will still keep references to that device
but the device itself will be already deregistered. And that sounds


SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)

 \ /
  Last update: 2017-10-12 23:42    [W:0.106 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site