Fix some problems discovered by Coverity
The list is available at https://scan7.scan.coverity.com/reports.htm#v43729/p15724
@zzyiwei there are also some venus fixes in
Edited by Gert Wollny
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The list is available at https://scan7.scan.coverity.com/reports.htm#v43729/p15724
@zzyiwei there are also some venus fixes in