3 files changed, 17 insertions, 3 deletions

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 5f9b74b9b71f..1b5853f384e2 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -844,6 +844,8 @@ static int ec_install_handlers(struct acpi_ec *ec)
 
 static void ec_remove_handlers(struct acpi_ec *ec)
 {
+        if (!test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags))
+                return;
         acpi_disable_gpe(NULL, ec->gpe);
         if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
                                 ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index caf9b76b7ef8..7a36f02598a6 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -325,6 +325,7 @@ static int acpi_fan_probe(struct platform_device *pdev)
         struct thermal_cooling_device *cdev;
         struct acpi_fan *fan;
         struct acpi_device *device = ACPI_COMPANION(&pdev->dev);
+        char *name;
 
         fan = devm_kzalloc(&pdev->dev, sizeof(*fan), GFP_KERNEL);
         if (!fan) {
@@ -346,7 +347,12 @@ static int acpi_fan_probe(struct platform_device *pdev)
                 }
         }
 
-        cdev = thermal_cooling_device_register("Fan", device,
+        if (!strncmp(pdev->name, "PNP0C0B", strlen("PNP0C0B")))
+                name = "Fan";
+        else
+                name = acpi_device_bid(device);
+
+        cdev = thermal_cooling_device_register(name, device,
                                                 &fan_cooling_ops);
         if (IS_ERR(cdev)) {
                 result = PTR_ERR(cdev);
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 185a57d13723..1eaadff2e198 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -155,6 +155,7 @@ struct acpi_video_bus {
         u8 dos_setting;
         struct acpi_video_enumerated_device *attached_array;
         u8 attached_count;
+        u8 child_count;
         struct acpi_video_bus_cap cap;
         struct acpi_video_bus_flags flags;
         struct list_head video_device_list;
@@ -1159,8 +1160,12 @@ static bool acpi_video_device_in_dod(struct acpi_video_device *device)
         struct acpi_video_bus *video = device->video;
         int i;
 
-        /* If we have a broken _DOD, no need to test */
-        if (!video->attached_count)
+        /*
+         * If we have a broken _DOD or we have more than 8 output devices
+         * under the graphics controller node that we can't proper deal with
+         * in the operation region code currently, no need to test.
+         */
+        if (!video->attached_count || video->child_count > 8)
                 return true;
 
         for (i = 0; i < video->attached_count; i++) {
@@ -1413,6 +1418,7 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video,
                         dev_err(&dev->dev, "Can't attach device\n");
                         break;
                 }
+                video->child_count++;
         }
         return status;
 }