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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-08-27 04:37:19 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-09-15 01:47:34 +0200 |
| commit | 263b4c1a64bc12470684aeaf7c44f03d31716819 (patch) | |
| tree | 80442913eae7918339e5f2ee2629317795b5e4b7 /drivers/acpi/property.c | |
| parent | 445b0eb058f5f31c844a731cb82e7441d0d9e578 (diff) | |
| download | talos-op-linux-263b4c1a64bc12470684aeaf7c44f03d31716819.tar.gz talos-op-linux-263b4c1a64bc12470684aeaf7c44f03d31716819.zip | |
ACPI / property: Expose data-only subnodes via sysfs
Add infrastructure needed to expose data-only subnodes of ACPI
device objects introduced previously via sysfs.
Each data-only subnode is represented as a sysfs directory under
the directory corresponding to its parent object (a device or a
data-only subnode). Each of them has a "path" attribute (containing
the full ACPI namespace path to the object the subnode data come from)
at this time.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/acpi/property.c')
| -rw-r--r-- | drivers/acpi/property.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index 17c436de376b..333f9146d19e 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -64,12 +64,13 @@ static bool acpi_nondev_subnode_ok(acpi_handle scope, goto fail; if (acpi_extract_properties(buf.pointer, &dn->data)) - dn->data.pointer = buf.pointer; + dn->handle = handle; if (acpi_enumerate_nondev_subnodes(scope, buf.pointer, &dn->data)) - dn->data.pointer = buf.pointer; + dn->handle = handle; - if (dn->data.pointer) { + if (dn->handle) { + dn->data.pointer = buf.pointer; list_add_tail(&dn->sibling, list); return true; } @@ -302,6 +303,7 @@ static void acpi_destroy_nondev_subnodes(struct list_head *list) list_for_each_entry_safe_reverse(dn, next, list, sibling) { acpi_destroy_nondev_subnodes(&dn->data.subnodes); + wait_for_completion(&dn->kobj_done); list_del(&dn->sibling); ACPI_FREE((void *)dn->data.pointer); kfree(dn); |
