The pointer value is initialized as &hba->vreg_info, and it's never
changed. It's not necessary to check the pointer is null or not.
Signed-off-by: NZeng Guangyue <zengguangyue@hisilicon.com>
Acked-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>