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authorIngo Molnar2013-04-08 17:41:50 +0200
committerIngo Molnar2013-04-08 17:41:50 +0200
commitb6d5278dc8385eaf2e3904a4af444a04f6ae4e71 (patch)
tree14e6031e0efa8e8b684db3b7ff85f8ac63ed0824 /drivers/acpi/pci_root.c
parentx86, MCE, AMD: Use MCG_CAP MSR to find out number of banks on AMD (diff)
parentx86/mce: Rework cmci_rediscover() to play well with CPU hotplug (diff)
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Merge tag 'please-pull-cmci_rediscover' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/ras
Pull clean up of the cmci_rediscover code to fix problems found by Dave Jones, from Tony Luck. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/acpi/pci_root.c')
-rw-r--r--drivers/acpi/pci_root.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 0ac546d5e53f..5ff173066127 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -646,6 +646,7 @@ static void handle_root_bridge_insertion(acpi_handle handle)
static void handle_root_bridge_removal(struct acpi_device *device)
{
+ acpi_status status;
struct acpi_eject_event *ej_event;
ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
@@ -661,7 +662,9 @@ static void handle_root_bridge_removal(struct acpi_device *device)
ej_event->device = device;
ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
- acpi_bus_hot_remove_device(ej_event);
+ status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event);
+ if (ACPI_FAILURE(status))
+ kfree(ej_event);
}
static void _handle_hotplug_event_root(struct work_struct *work)
@@ -676,8 +679,9 @@ static void _handle_hotplug_event_root(struct work_struct *work)
handle = hp_work->handle;
type = hp_work->type;
- root = acpi_pci_find_root(handle);
+ acpi_scan_lock_acquire();
+ root = acpi_pci_find_root(handle);
acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
switch (type) {
@@ -711,6 +715,7 @@ static void _handle_hotplug_event_root(struct work_struct *work)
break;
}
+ acpi_scan_lock_release();
kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
kfree(buffer.pointer);
}