arch/x86: Do not add properties to null DP packages

It doesn't make sense to add a property to a non-existent Device
Property package. However, some of these functions will proceed anyway
and allocate a new Device Property package, add the property to
that, and then immediately leak the new package. This changes all the
acpi_dp_add_* functions to ignore a null package.

Change-Id: I664dcdbaa6b1b8a3aeb9a0126d622e2ffb736efd
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Found-by: Coverity CID 135745{6,7}, 138029{2-6}
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32971
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

0 files changed, 0 insertions, 0 deletions