On Friday, June 14, 2013 03:32:42 PM Tony Luck wrote:
> On Fri, Jun 14, 2013 at 3:23 PM, Rafael J. Wysocki <r...@sisk.pl> wrote:
> > Can you please just test patch [5/5] alone without patches [1-4/5]? We
> > believe
> > that this should work too and if that's the case, we'll only need that patch
> > and a reworked [1/5].
>
> Your belief is sound - I popped all five patches and then applied just
> 5/5 ... and
> the system still works.
Great, thanks!
Can you please apply the appended patch on top of it and see if the system
still works then?
Rafael
---
From: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
Subject: ACPI / scan: Do not bind ACPI drivers to objects with scan handlers
ACPI drivers must not be bound to device objects having scan handlers
attatched to them, so make acpi_device_probe() fail with -EINVAL if the
device object being probed has an ACPI scan handler.
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
---
drivers/acpi/scan.c | 3 +++
drivers/acpi/video.c | 3 ---
2 files changed, 3 insertions(+), 3 deletions(-)
Index: linux-pm/drivers/acpi/scan.c
===================================================================
--- linux-pm.orig/drivers/acpi/scan.c
+++ linux-pm/drivers/acpi/scan.c
@@ -939,6 +939,9 @@ static int acpi_device_probe(struct devi
struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver);
int ret;
+ if (acpi_dev->handler)
+ return -EINVAL;
+
if (!acpi_drv->ops.add)
return -ENOSYS;
Index: linux-pm/drivers/acpi/video.c
===================================================================
--- linux-pm.orig/drivers/acpi/video.c
+++ linux-pm/drivers/acpi/video.c
@@ -1722,9 +1722,6 @@ static int acpi_video_bus_add(struct acp
int error;
acpi_status status;
- if (device->handler)
- return -EINVAL;
-
status = acpi_walk_namespace(ACPI_TYPE_DEVICE,
device->parent->handle, 1,
acpi_video_bus_match, NULL,
--
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