Resolve the possible use of negative value (detected by coverity tool) 49/215349/1 accepted/tizen_5.5_unified_mobile_hotfix tizen_5.5_mobile_hotfix tizen_5.5_tv accepted/tizen/5.5/unified/20191031.010026 accepted/tizen/5.5/unified/mobile/hotfix/20201027.063207 accepted/tizen/unified/20191009.231729 accepted/tizen/unified/20191011.015423 submit/tizen/20191007.211537 submit/tizen/20191008.054628 submit/tizen/20191009.211935 submit/tizen_5.5/20191031.000006 submit/tizen_5.5_mobile_hotfix/20201026.185106 tizen_5.5.m2_release
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