This is a note to let you know that I've just added the patch titled
ACPI / scan: Do not use dummy HID for system bus ACPI nodes
to the 3.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-scan-do-not-use-dummy-hid-for-system-bus-acpi-nodes.patch
and it can be found in the queue-3.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 4f5f64cf0cc916220aaa055992e31195470cfe37 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <[email protected]>
Date: Fri, 4 Jan 2013 23:00:54 +0100
Subject: ACPI / scan: Do not use dummy HID for system bus ACPI nodes
From: "Rafael J. Wysocki" <[email protected]>
commit 4f5f64cf0cc916220aaa055992e31195470cfe37 upstream.
At one point acpi_device_set_id() checks if acpi_device_hid(device)
returns NULL, but that never happens, so system bus devices with an
empty list of PNP IDs are given the dummy HID ("device") instead of
the "system bus HID" ("LNXSYBUS"). Fix the code to use the right
check.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/acpi/scan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1227,7 +1227,7 @@ static void acpi_device_set_id(struct ac
acpi_add_id(device, ACPI_DOCK_HID);
else if (!acpi_ibm_smbus_match(device))
acpi_add_id(device, ACPI_SMBUS_IBM_HID);
- else if (!acpi_device_hid(device) &&
+ else if (list_empty(&device->pnp.ids) &&
ACPI_IS_ROOT_DEVICE(device->parent)) {
acpi_add_id(device, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
Patches currently in stable-queue which might be from
[email protected] are
queue-3.7/acpi-do-acpisleep-dmi-check-when-config_acpi_sleep-is-set.patch
queue-3.7/acpi-scan-do-not-use-dummy-hid-for-system-bus-acpi-nodes.patch
queue-3.7/pnpacpi-fix-incorrect-test_alpha-test.patch
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