platform/x86/amd/hsmp: Clear mdev.this_device on deregister

Browse source

misc_deregister() destroys the device but leaves miscdevice.this_device
pointing at the freed struct device. Clear it so any later check of
this_device, and a subsequent re-register, does not observe a stale
pointer. An upcoming change uses this_device to track whether /dev/hsmp is
registered across the shared ACPI sockets and relies on it being NULL after
deregister.

Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com>
Link: https://patch.msgid.link/20260723094656.3806028-5-muralidhara.mk@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

...

This commit is contained in:

Muralidhara M K 2026-07-23 15:16:54 +05:30 • committed by Ilpo Järvinen

parent 8da4fedd5d

commit 6bd243d5ab

No known key found for this signature in database

GPG key ID: 59AC4F6153E5CE31

1 changed files with 1 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/platform/x86/amd/hsmp/hsmp.c

View file