[PATCH 02/15] ACPI / PM: Do not refcount power resources that can't be turned on

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From: Rafael J. Wysocki <rjw@xxxxxxx>

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@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
 drivers/acpi/power.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 792a830..4c9c2fb 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -213,11 +213,13 @@ static int acpi_power_on(acpi_handle handle)
 				  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)
-- 
1.7.3.3.480.g2f76a

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