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libata: forbid port runtime pm by default, fixing regression
author
Lin Ming
<ming.m.lin@intel.com>
Wed, 18 Apr 2012 01:29:47 +0000
(09:29 +0800)
committer
Jeff Garzik
<jgarzik@redhat.com>
Wed, 18 Apr 2012 18:33:25 +0000
(14:33 -0400)
Forbid port runtime pm by default because it has known hotplug issue.
User can allow it by, for example
echo auto > /sys/devices/pci0000:00/0000:00:1f.2/ata2/power/control
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/ata/libata-transport.c
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diff --git
a/drivers/ata/libata-transport.c
b/drivers/ata/libata-transport.c
index 74aaee30e264ce1959c3807cb6a9e4c8bad27c95..c341904853770f7dad45e5cc4e1180f76111e322 100644
(file)
--- a/
drivers/ata/libata-transport.c
+++ b/
drivers/ata/libata-transport.c
@@
-294,6
+294,7
@@
int ata_tport_add(struct device *parent,
device_enable_async_suspend(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
+ pm_runtime_forbid(dev);
transport_add_device(dev);
transport_configure_device(dev);