On 2013/5/24 10:49, Zhang, Sonic wrote:
>> >- iface = kzalloc(sizeof(struct bfin_twi_iface), GFP_KERNEL);
>> >+ iface = devm_kzalloc(&pdev->dev, sizeof(struct bfin_twi_iface),
>> >+ GFP_KERNEL);
>> > if (!iface) {
>> > dev_err(&pdev->dev, "Cannot allocate memory\n");
>> >- rc = -ENOMEM;
>> >- goto out_error_nomem;
>> >+ return -ENOMEM;
>> > }
>> >
>> > spin_lock_init(&(iface->lock));
>> >
>> > /* Find and map our resources */
>> > res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> >- if (res == NULL) {
>> >- dev_err(&pdev->dev, "Cannot get IORESOURCE_MEM\n");
>> >- rc = -ENOENT;
>> >- goto out_error_get_res;
>> >- }
> Why remove the resource mem check?
>
> Regards,
>
> Sonic
devm_ioremap_resource() had done for us, you can refernce the function`comment.
Thanks,
Libo
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