drivers/usb/acpi: Avoid dereferencing maybe-NULL pointer

Do not dereference a pointer before checking whether it is NULL.

Change-Id: Icbe9ae99d91fd587d8e56cf3a0dcb59834ee6d07
Found-by: Coverity CID 1458232
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56266
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions