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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-31 07:11:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-31 07:11:45 +0200 |
| commit | 5fedf0d295d3ef69fd85fdee4cb68fd3756b54c2 (patch) | |
| tree | 777c39ad4586149de154be3c4c102f751336a37b /drivers/acpi/osl.c | |
| parent | 3ed8e1c2ac9914a2fcb08ec13476b85319536cea (diff) | |
| parent | f75aef392f869018f78cfedf3c320a6b3fcfda6b (diff) | |
| download | linux-stable-5fedf0d295d3ef69fd85fdee4cb68fd3756b54c2.tar.gz linux-stable-5fedf0d295d3ef69fd85fdee4cb68fd3756b54c2.tar.bz2 linux-stable-5fedf0d295d3ef69fd85fdee4cb68fd3756b54c2.zip | |
Merge 5.9-rc3 into usb-next
We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi/osl.c')
| -rw-r--r-- | drivers/acpi/osl.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 6ad8cb05f672..4a0b07792233 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -350,7 +350,7 @@ void __iomem __ref pg_off = round_down(phys, PAGE_SIZE); pg_sz = round_up(phys + size, PAGE_SIZE) - pg_off; - virt = acpi_map(pg_off, pg_sz); + virt = acpi_map(phys, size); if (!virt) { mutex_unlock(&acpi_ioremap_lock); kfree(map); @@ -358,7 +358,7 @@ void __iomem __ref } INIT_LIST_HEAD(&map->list); - map->virt = virt; + map->virt = (void __iomem __force *)((unsigned long)virt & PAGE_MASK); map->phys = pg_off; map->size = pg_sz; map->track.refcount = 1; @@ -1575,11 +1575,26 @@ static acpi_status acpi_deactivate_mem_region(acpi_handle handle, u32 level, acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, u32 level) { + acpi_status status; + if (!(res->flags & IORESOURCE_MEM)) return AE_TYPE; - return acpi_walk_namespace(ACPI_TYPE_REGION, handle, level, - acpi_deactivate_mem_region, NULL, res, NULL); + status = acpi_walk_namespace(ACPI_TYPE_REGION, handle, level, + acpi_deactivate_mem_region, NULL, + res, NULL); + if (ACPI_FAILURE(status)) + return status; + + /* + * Wait for all of the mappings queued up for removal by + * acpi_deactivate_mem_region() to actually go away. + */ + synchronize_rcu(); + rcu_barrier(); + flush_scheduled_work(); + + return AE_OK; } EXPORT_SYMBOL_GPL(acpi_release_memory); |