Re: [PATCH V2] mips: txx9: fix resource leak after register fail

[Atsushi Nemoto]

On Wed,  5 Sep 2018 19:22:19 +0800, Ding Xiang <dingxiang@xxxxxxxxxxxxxxxxxxxx> wrote:
> the memory allocated and ioremap address need free after
> device_register return error.
...
>  exit_put:
>  	put_device(&dev->dev);
> -	return;
> +exit_free:
> +	iounmap(dev->base);
> +	kfree(dev);

This change will break exit_put error path.
I think kfree will be called from txx9_device_release by put_device.

Please refer James's comment on previous trial:
<https://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20180305221833.GJ4197%40saruman>

---
Atsushi Nemoto