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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-11-14 03:54:08 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-11-19 04:02:52 +0400
commitc1beb0bdb5b3ef670af3ab946434f7fc55d4c7a3 (patch)
treef1bda108b6295b382a3b12552307bad2690ca17e /drivers/acpi
parent5beaee4f195d0297473da9a45459050b561e10cf (diff)
downloadlinux-c1beb0bdb5b3ef670af3ab946434f7fc55d4c7a3.tar.xz
ACPI / hotplug: Fix PCI host bridge hot removal
Since the PCI host bridge scan handler does not set hotplug.enabled, the check of it in acpi_bus_device_eject() effectively prevents the root bridge hot removal from working after commit a3b1b1ef78cd (ACPI / hotplug: Merge device hot-removal routines). However, that check is not necessary, because the other acpi_bus_device_eject() users, acpi_hotplug_notify_cb and acpi_eject_store(), do the same check by themselves before executing that function. For this reason, remove the scan handler check from acpi_bus_device_eject() to make PCI hot bridge hot removal work again. Fixes: a3b1b1ef78cd (ACPI / hotplug: Merge device hot-removal routines) Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Toshi Kani <toshi.kani@hp.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/scan.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 4698060ba3f0..821d154221d5 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -289,24 +289,17 @@ void acpi_bus_device_eject(void *data, u32 ost_src)
{
struct acpi_device *device = data;
acpi_handle handle = device->handle;
- struct acpi_scan_handler *handler;
u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
int error;
lock_device_hotplug();
mutex_lock(&acpi_scan_lock);
- handler = device->handler;
- if (!handler || !handler->hotplug.enabled) {
- put_device(&device->dev);
- goto err_support;
- }
-
if (ost_src == ACPI_NOTIFY_EJECT_REQUEST)
acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST,
ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
- if (handler->hotplug.mode == AHM_CONTAINER)
+ if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER)
kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
error = acpi_scan_hot_remove(device);