From 12b3b5afed67e08aa641d30e57df20dab2e33432 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Thu, 25 Nov 2010 00:03:32 +0100
Subject: [PATCH] ACPI / PM: Do not refcount power resources that can't be
turned on
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>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/power.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 792a8309d074..4c9c2fb5d98f 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)
--
GitLab