Re: [PATCH 4/4] char/tpm: Less checks in tpm_ibmvtpm_probe() after error detection

From: SF Markus Elfring
Date: Thu Oct 19 2017 - 08:36:59 EST


>> @@ -683,13 +683,10 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
>> reg_crq_cleanup:
>> dma_unmap_single(dev, ibmvtpm->crq_dma_handle,
>> CRQ_RES_BUF_SIZE, DMA_BIDIRECTIONAL);
>> -cleanup:
>> - if (ibmvtpm) {
>> - if (crq_q->crq_addr)
>> - free_page((unsigned long)crq_q->crq_addr);
>> - kfree(ibmvtpm);
>> - }
>> -
>
> I think a single cleanup section is better than many labels that just
> avoid a single null check.

I proposed to delete two unnecessary condition checks together with
an adjustment of jump targets.

Regards,
Markus