Ensure the physical_bar parameter passed to xhci_init is not NULL, else
return NULL. This may occur when an XHCI controller is disabled and no resources are allocated for it.
BUG=b:284213001
Change-Id: I05c32612606793adcba3f4a5724092387a215d41
Signed-off-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75645
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
45194b19f8