[ACPI] Merge acpi-2.6.12 branch into 2.6.13-rc3

Signed-off-by: Len Brown <len.brown@intel.com>

7 files changed, 42 insertions, 15 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index ba13896cae4..66c60982ba4 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 bb973d2109a..c885300579e 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 834c2ceff1a..26aa3829f1d 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 2cf264fd52e..7b10a7b070c 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);
 }
 
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 762fa430fb5..97feb7f7024 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -906,11 +906,15 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data)
 		if (irqp->number_of_interrupts > 0) {
 			hdp->hd_nirqs = irqp->number_of_interrupts;
 
-			for (i = 0; i < hdp->hd_nirqs; i++)
-				hdp->hd_irq[i] =
+			for (i = 0; i < hdp->hd_nirqs; i++) {
+				int rc =
 				    acpi_register_gsi(irqp->interrupts[i],
 						      irqp->edge_level,
 						      irqp->active_high_low);
+				if (rc < 0)
+					return AE_ERROR;
+				hdp->hd_irq[i] = rc;
+			}
 		}
 	}
 
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index 75575f6c349..1e296cbef00 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -81,7 +81,7 @@ pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, int irq)
 		i++;
 	if (i < PNP_MAX_IRQ) {
 		res->irq_resource[i].flags = IORESOURCE_IRQ;  //Also clears _UNSET flag
-		if (irq == -1) {
+		if (irq < 0) {
 			res->irq_resource[i].flags |= IORESOURCE_DISABLED;
 			return;
 		}
diff --git a/drivers/serial/8250_acpi.c b/drivers/serial/8250_acpi.c
index 6b9ead28851..a802bdce6e5 100644
--- a/drivers/serial/8250_acpi.c
+++ b/drivers/serial/8250_acpi.c
@@ -47,18 +47,30 @@ static acpi_status acpi_serial_port(struct uart_port *port,
 static acpi_status acpi_serial_ext_irq(struct uart_port *port,
 				       struct acpi_resource_ext_irq *ext_irq)
 {
-	if (ext_irq->number_of_interrupts > 0)
-		port->irq = acpi_register_gsi(ext_irq->interrupts[0],
+	int rc;
+
+	if (ext_irq->number_of_interrupts > 0) {
+		rc = acpi_register_gsi(ext_irq->interrupts[0],
 	                   ext_irq->edge_level, ext_irq->active_high_low);
+		if (rc < 0)
+			return AE_ERROR;
+		port->irq = rc;
+	}
 	return AE_OK;
 }
 
 static acpi_status acpi_serial_irq(struct uart_port *port,
 				   struct acpi_resource_irq *irq)
 {
-	if (irq->number_of_interrupts > 0)
-		port->irq = acpi_register_gsi(irq->interrupts[0],
+	int rc;
+
+	if (irq->number_of_interrupts > 0) {
+		rc = acpi_register_gsi(irq->interrupts[0],
 	                   irq->edge_level, irq->active_high_low);
+		if (rc < 0)
+			return AE_ERROR;
+		port->irq = rc;
+	}
 	return AE_OK;
 }