Since the acpi_create_platform_device() function may return error
pointers, dwc3_qcom_create_urs_usb_platdev() function may return error
pointers too. Using IS_ERR_OR_NULL() to check the return value to fix this.

Fixes: c25c210f ("usb: dwc3: qcom: add URS Host support for sdm845 ACPI boot")
Signed-off-by: NMiaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20211222111823.22887-1-linmq006@gmail.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>