add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/gnss/serial.c
..
..
@@ -65,7 +65,7 @@
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 	/* write is only buffered synchronously */
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 	ret = serdev_device_write(serdev, buf, count, MAX_SCHEDULE_TIMEOUT);
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-	if (ret < 0)
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+	if (ret < 0 || ret < count)
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 		return ret;
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 	/* FIXME: determine if interrupted? */