diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
index 0a43c8e0eff323fe55f29846695c71e750ffedf3..4172d290f2756d9e31f4ac9be7dff22148b5c106 100644
--- a/drivers/acpi/toshiba_acpi.c
+++ b/drivers/acpi/toshiba_acpi.c
@@ -392,7 +392,7 @@ static unsigned long write_video(const char *buffer, unsigned long count)
 
 	hci_read1(HCI_VIDEO_OUT, &video_out, &hci_result);
 	if (hci_result == HCI_SUCCESS) {
-		int new_video_out = video_out;
+		unsigned int new_video_out = video_out;
 		if (lcd_out != -1)
 			_set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
 		if (crt_out != -1)