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ACPI fixes for 6.13-rc3

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- Relocate the addr->info.mem.caching check in acpi_decode_space() to
    only execute it if the resource is of the correct type (Ilpo Järvinen).
 
  - Don't release a context_mutex that was never acquired in
    acpi_remove_address_space_handler() (Daniil Tatianin).
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Merge tag 'acpi-6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix two coding mistakes, one in the ACPI resources handling code
  and one in ACPICA:

   - Relocate the addr->info.mem.caching check in acpi_decode_space() to
     only execute it if the resource is of the correct type (Ilpo
     Järvinen)

   - Don't release a context_mutex that was never acquired in
     acpi_remove_address_space_handler() (Daniil Tatianin)"

* tag 'acpi-6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPICA: events/evxfregn: don't release the ContextMutex that was never acquired
  ACPI: resource: Fix memory resource type union access
This commit is contained in:
Linus Torvalds 2024-12-13 16:51:56 -08:00
commit c810e8df96
2 changed files with 3 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/acpi/acpica/evxfregn.c
View File

@ -232,8 +232,6 @@ acpi_remove_address_space_handler(acpi_handle device,
/* Now we can delete the handler object */
acpi_os_release_mutex(handler_obj->address_space.
context_mutex);
acpi_ut_remove_reference(handler_obj);
goto unlock_and_exit;
}

6
drivers/acpi/resource.c
View File

@ -250,6 +250,9 @@ static bool acpi_decode_space(struct resource_win *win,
switch (addr->resource_type) {
case ACPI_MEMORY_RANGE:
acpi_dev_memresource_flags(res, len, wp);
if (addr->info.mem.caching == ACPI_PREFETCHABLE_MEMORY)
res->flags |= IORESOURCE_PREFETCH;
break;
case ACPI_IO_RANGE:
acpi_dev_ioresource_flags(res, len, iodec,
@ -265,9 +268,6 @@ static bool acpi_decode_space(struct resource_win *win,
if (addr->producer_consumer == ACPI_PRODUCER)
res->flags |= IORESOURCE_WINDOW;
if (addr->info.mem.caching == ACPI_PREFETCHABLE_MEMORY)
res->flags |= IORESOURCE_PREFETCH;
return !(res->flags & IORESOURCE_DISABLED);
}