drivers/display/lcd160cr: Add check that JPEG size is less than 65536.

dpgeorge · dpgeorge · commit 528aeb3bf3e4 · 2017-02-27T18:39:35.000+11:00
diff --git a/drivers/display/lcd160cr.py b/drivers/display/lcd160cr.py
@@ -446,6 +446,8 @@ def set_scroll_buf(self, s):
         self._send(s)
 
     def jpeg_start(self, l):
+        if l > 0xffff:
+            raise ValueError('length must be 65535 or less')
         self.oflush()
         self._fcmd2('<BBH', 0x6a, l)
 
