4 files changed, 19 insertions, 8 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index ba13896cae40..66c60982ba46 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -154,12 +154,10 @@ config ACPI_PROCESSOR
           support it.
 
 config ACPI_HOTPLUG_CPU
-        bool "Processor Hotplug (EXPERIMENTAL)"
-        depends on ACPI_PROCESSOR && HOTPLUG_CPU && EXPERIMENTAL
+        bool
+        depends on ACPI_PROCESSOR && HOTPLUG_CPU
         select ACPI_CONTAINER
-        default n
-         ---help---
-         Select this option if your platform support physical CPU hotplug.
+        default y
 
 config ACPI_THERMAL
         tristate "Thermal Zone"
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index bb973d2109a1..c885300579ec 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -424,6 +424,7 @@ acpi_pci_irq_enable (
         int                     edge_level = ACPI_LEVEL_SENSITIVE;
         int                     active_high_low = ACPI_ACTIVE_LOW;
         char                    *link = NULL;
+        int                     rc;
 
         ACPI_FUNCTION_TRACE("acpi_pci_irq_enable");
 
@@ -476,7 +477,13 @@ acpi_pci_irq_enable (
                 }
         }
 
-        dev->irq = acpi_register_gsi(irq, edge_level, active_high_low);
+        rc = acpi_register_gsi(irq, edge_level, active_high_low);
+        if (rc < 0) {
+                printk(KERN_WARNING PREFIX "PCI Interrupt %s[%c]: failed "
+                       "to register GSI\n", pci_name(dev), ('A' + pin));
+                return_VALUE(rc);
+        }
+        dev->irq = rc;
 
         printk(KERN_INFO PREFIX "PCI Interrupt %s[%c] -> ",
                 pci_name(dev), 'A' + pin);
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 834c2ceff1aa..26aa3829f1de 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -804,8 +804,7 @@ acpi_pci_link_resume(
  */
 int acpi_in_resume;
 static int
-irqrouter_resume(
-        struct sys_device *dev)
+irqrouter_resume(struct sys_device *dev)
 {
         struct list_head        *node = NULL;
         struct acpi_pci_link    *link = NULL;
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 2cf264fd52e0..7b10a7b070c9 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1665,6 +1665,7 @@ static int
 acpi_video_bus_put_one_device(
         struct acpi_video_device        *device)
 {
+        acpi_status status;
         struct acpi_video_bus *video;
 
         ACPI_FUNCTION_TRACE("acpi_video_bus_put_one_device");
@@ -1679,6 +1680,12 @@ acpi_video_bus_put_one_device(
         up(&video->sem);
         acpi_video_device_remove_fs(device->dev);
 
+        status = acpi_remove_notify_handler(device->handle,
+                ACPI_DEVICE_NOTIFY, acpi_video_device_notify);
+        if (ACPI_FAILURE(status))
+                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+                        "Error removing notify handler\n"));
+
         return_VALUE(0);
 }