dev_read_addr_ptr() returns a null pointer on error, not FDT_ADDR_T_NONE.
Fixes: 2be1130a9305 ("usb: ehci-msm: Use dev interface to get device address") Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org> Acked-by: Caleb Connolly <caleb.connolly@linaro.org> Tested-by: Sam Day <me@samcday.com> Link: https://patch.msgid.link/20250407-ehci-msm-fixes-v1-1-f8b30eb05d07@linaro.org Signed-off-by: Casey Connolly <casey.connolly@linaro.org>