rsi: Fixed signedness bug reported by static code analyzer.
rsi: Fixed signedness bug reported by static code analyzer.

Signed-off-by: Fariya Fatima <e3ec47f86632c530f53ca4c659eb8e25a4d8e98f@gmail.com>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs