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@@ -155,6 +155,7 @@ struct acpi_video_bus {
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u8 dos_setting;
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struct acpi_video_enumerated_device *attached_array;
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u8 attached_count;
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+ u8 child_count;
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struct acpi_video_bus_cap cap;
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struct acpi_video_bus_flags flags;
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struct list_head video_device_list;
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@@ -1159,8 +1160,12 @@ static bool acpi_video_device_in_dod(struct acpi_video_device *device)
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struct acpi_video_bus *video = device->video;
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int i;
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- /* If we have a broken _DOD, no need to test */
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- if (!video->attached_count)
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+ /*
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+ * If we have a broken _DOD or we have more than 8 output devices
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+ * under the graphics controller node that we can't proper deal with
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+ * in the operation region code currently, no need to test.
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+ */
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+ if (!video->attached_count || video->child_count > 8)
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return true;
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for (i = 0; i < video->attached_count; i++) {
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@@ -1413,6 +1418,7 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video,
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dev_err(&dev->dev, "Can't attach device\n");
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break;
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}
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+ video->child_count++;
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}
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return status;
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}
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