Re: [linux-sunxi] [PATCH 2/4] drivers: soc: sunxi: fix error processing on base address when claiming

[Chen-Yu Tsai]

Hi,

On Wed, Aug 9, 2017 at 4:56 PM, Icenowy Zheng <icenowy@xxxxxxx> wrote:
> When claiming SRAM, if the base is set to an error, it means that the
> SRAM controller has been probed, but failed to remap the controller
> memory zone. If the base is zero, thus the SRAM controller should be not
> probed at all, and it should return -EPROBE_DEFER. However, currently we
> returned -EPROBE_DEFER in the former situation, and ignored the latter
> situation (which will lead to the kernel to panic).
>
> Fix the behavior on abnormal base address processing when claiming.

Could you describe how you actually ran into this? The failure seems
unlikely for a properly written device tree.

Thanks
ChenYu