soc/intel/broadwell: Init var before use, only use when needed

root_port_init_config() pcie.c wasn't initializing a variable before
passing its pointer to pch_iobp_exec(). pch_iobp_exec() wrote the
uninitialized value into a register.
In theory, the register would only be used if data was being written,
and pch_iobp_exec()  was being used to read the data, not write it, so
this change shouldn't have any practical effect.

Fixes coverity error:
CID 1293134 (#1 of 1): Uninitialized scalar variable (UNINIT)

Change-Id: I5d17863d904c6b1ceb30d72b94cd7a40c8fbb437
Signed-off-by: Martin Roth <>
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <>
2 files changed