[ACPI] fix potential NULL dereference in acpi/video.c
Found-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -1585,7 +1585,7 @@ acpi_video_switch_output(
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ACPI_FUNCTION_TRACE("acpi_video_switch_output");
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list_for_each_safe(node, next, &video->video_device_list) {
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struct acpi_video_device * dev = container_of(node, struct acpi_video_device, entry);
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dev = container_of(node, struct acpi_video_device, entry);
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status = acpi_video_device_get_state(dev, &state);
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if (state & 0x2){
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dev_next = container_of(node->next, struct acpi_video_device, entry);
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