On Friday, January 11, 2013 10:37:59 PM Mika Westerberg wrote:
> On Fri, Jan 11, 2013 at 09:31:43PM +0100, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> > Subject: ACPI / scan: Fix check of device_attach() return value.
> >
> > Since device_attach() returns 1 on success and 0 on failure,
> > the check against its return value in acpi_bus_device_attach()
> > should be reveresed. Make it so.
>
> Not sure if it matters but it returns 0 if no device was bound to a driver
> and -ENODEV in case of error. If we only want to terminate in case of
> error, following might be better.
>
> } else if (device_attach(&device->dev) < 0) {
Yes, this check will be better.
Which means that the patch is actually yours, so I've just added the changelog. :-)
Thanks,
Rafael
---
From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Subject: ACPI / scan: Fix check of device_attach() return value.
Since device_attach() returns 1 on success (a driver has been bound
to the device), the check against its return value in
acpi_bus_device_attach() should modified to take that into accout.
Make it so.
[rjw: Subject and changelog.]
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
---
drivers/acpi/scan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-pm/drivers/acpi/scan.c
===================================================================
--- linux-pm.orig/drivers/acpi/scan.c
+++ linux-pm/drivers/acpi/scan.c
@@ -1598,7 +1598,7 @@ static acpi_status acpi_bus_device_attac
if (!acpi_match_device_ids(device, acpi_platform_device_ids)) {
/* This is a known good platform device. */
acpi_create_platform_device(device);
- } else if (device_attach(&device->dev)) {
+ } else if (device_attach(&device->dev) < 0) {
status = AE_CTRL_DEPTH;
}
return status;
--
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