[PATCH 2/13] ACPI / PM: Do not refcount power resources that can't be turned on

Rafael J. Wysocki
2010-11-24T23:03:32Z

If turning on a power resource fails, do not reference count it,
since it cannot be in use in that case.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
drivers/acpi/power.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

Index: linux-2.6/drivers/acpi/power.c
===================================================================
--- linux-2.6.orig/drivers/acpi/power.c
+++ linux-2.6/drivers/acpi/power.c
@@ -213,11 +213,13 @@ static int acpi_power_on(acpi_handle han
resource->name));
} else {
result = __acpi_power_on(resource);
+ if (result)
+ resource->ref_count--;
}

mutex_unlock(&resource->resource_lock);

- return 0;
+ return result;
}

static int acpi_power_off_device(acpi_handle handle)