add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/drivers/net/wimax/i2400m/usb-fw.c
..
..
@@ -135,7 +135,7 @@
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 			msleep(10);	/* give the device some time */
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 			goto retry;
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 		}
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-		/* fall through */
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+		fallthrough;
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 	case -EINVAL:			/* while removing driver */
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 	case -ENODEV:			/* dev disconnect ... */
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 	case -ENOENT:			/* just ignore it */