fix issues raised by Coverity scans (#7431)
This commit combines fixes for 37 potential code issues found in
Coverity scans.
the issues include but are not limited to potential access to
uninitialized variables, dead and redundant code.
We understand that reviewing such a commit can be difficult and will be
happy to help with any questions or changes required.
---------
Signed-off-by: Nir Sonnenschein <nsonnenschein@habana.ai>
Co-authored-by: Logan Adams <114770087+loadams@users.noreply.github.com>
Co-authored-by: Olatunji Ruwase <tunji.ruwase@snowflake.com>
