4 files changed, 16 insertions, 69 deletions

diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index d25ef961415..44ad90c03c2 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -610,7 +610,7 @@ write_led(const char __user * buffer, unsigned long count,
 	    (led_out) ? (hotk->status | ledmask) : (hotk->status & ~ledmask);
 
 	if (invert)		/* invert target value */
-		led_out = !led_out & 0x1;
+		led_out = !led_out;
 
 	if (!write_acpi_int(hotk->handle, ledname, led_out, NULL))
 		printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n",
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index f6215e80980..d5729d5dc19 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -293,13 +293,12 @@ static int extract_package(struct acpi_battery *battery,
 				strncpy(ptr, (u8 *)&element->integer.value,
 					sizeof(acpi_integer));
 				ptr[sizeof(acpi_integer)] = 0;
-			} else return -EFAULT;
+			} else
+				*ptr = 0; /* don't have value */
 		} else {
-			if (element->type == ACPI_TYPE_INTEGER) {
-				int *x = (int *)((u8 *)battery +
-						offsets[i].offset);
-				*x = element->integer.value;
-			} else return -EFAULT;
+			int *x = (int *)((u8 *)battery + offsets[i].offset);
+			*x = (element->type == ACPI_TYPE_INTEGER) ?
+				element->integer.value : -1;
 		}
 	}
 	return 0;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 6f3b217699e..e8e2d886923 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -216,8 +216,10 @@ static void acpi_safe_halt(void)
 	 * test NEED_RESCHED:
 	 */
 	smp_mb();
-	if (!need_resched())
+	if (!need_resched()) {
 		safe_halt();
+		local_irq_disable();
+	}
 	current_thread_info()->status |= TS_POLLING;
 }
 
@@ -421,7 +423,9 @@ static void acpi_processor_idle(void)
 		else
 			acpi_safe_halt();
 
-		local_irq_enable();
+		if (irqs_disabled())
+			local_irq_enable();
+
 		return;
 	}
 
@@ -530,7 +534,9 @@ static void acpi_processor_idle(void)
 		 *       skew otherwise.
 		 */
 		sleep_ticks = 0xFFFFFFFF;
-		local_irq_enable();
+		if (irqs_disabled())
+			local_irq_enable();
+
 		break;
 
 	case ACPI_STATE_C2:
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 1bc0c74f275..12fb44f1676 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -807,40 +807,11 @@ static void acpi_video_bus_find_cap(struct acpi_video_bus *video)
 static int acpi_video_bus_check(struct acpi_video_bus *video)
 {
 	acpi_status status = -ENOENT;
-	long device_id;
-	struct device *dev;
-	struct acpi_device *device;
+
 
 	if (!video)
 		return -EINVAL;
 
-	device = video->device;
-
-	status =
-	    acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
-
-	if (!ACPI_SUCCESS(status))
-		return -ENODEV;
-
-	/* We need to attempt to determine whether the _ADR refers to a
-	   PCI device or not. There's no terribly good way to do this,
-	   so the best we can hope for is to assume that there'll never
-	   be a video device in the host bridge */
-	if (device_id >= 0x10000) {
-		/* It looks like a PCI device. Does it exist? */
-		dev = acpi_get_physical_device(device->handle);
-	} else {
-		/* It doesn't look like a PCI device. Does its parent
-		   exist? */
-		acpi_handle phandle;
-		if (acpi_get_parent(device->handle, &phandle))
-			return -ENODEV;
-		dev = acpi_get_physical_device(phandle);
-	}
-	if (!dev)
-		return -ENODEV;
-	put_device(dev);
-
 	/* Since there is no HID, CID and so on for VGA driver, we have
 	 * to check well known required nodes.
 	 */
@@ -1366,37 +1337,8 @@ acpi_video_bus_write_DOS(struct file *file,
 
 static int acpi_video_bus_add_fs(struct acpi_device *device)
 {
-	long device_id;
-	int status;
 	struct proc_dir_entry *entry = NULL;
 	struct acpi_video_bus *video;
-	struct device *dev;
-
-	status =
-	    acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
-
-	if (!ACPI_SUCCESS(status))
-		return -ENODEV;
-
-	/* We need to attempt to determine whether the _ADR refers to a
-	   PCI device or not. There's no terribly good way to do this,
-	   so the best we can hope for is to assume that there'll never
-	   be a video device in the host bridge */
-	if (device_id >= 0x10000) {
-		/* It looks like a PCI device. Does it exist? */
-		dev = acpi_get_physical_device(device->handle);
-	} else {
-		/* It doesn't look like a PCI device. Does its parent
-		   exist? */
-		acpi_handle phandle;
-		if (acpi_get_parent(device->handle, &phandle))
-			return -ENODEV;
-		dev = acpi_get_physical_device(phandle);
-	}
-	if (!dev)
-		return -ENODEV;
-	put_device(dev);
-
 
 
 	video = acpi_driver_data(device);