fix some minor issues found by LGTM

pengutronix / genimage

tool to generate multiple filesystem and flash images from a tree

GNU General Public License v2.0

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fix some minor issues found by LGTM #56

Closed michaelolbrich closed 5 years ago

jluebbe commented 5 years ago

This pull request fixes 2 alerts when merging f9b754f0f8fc11e0ff2f9d81ae4c3ef180b286e6 into 67a24410a76f0b3cd1da0ffa083b5eb174b6efcc - view on LGTM.com

fixed alerts:

1 for Multiplication result converted to larger type
1 for Local variable hides global variable

Comment posted by LGTM.com