From: Lin Ming Date: Wed, 18 Apr 2012 09:13:41 +0800 Subject: [PATCH] libata: forbid port runtime pm by default 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 --- drivers/ata/libata-transport.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) --- linux-3.3.noarch.orig/drivers/ata/libata-transport.c +++ linux-3.3.noarch/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);