Re: [PATCH] devm_memremap: Fix error value when memremap failed

[Dan Williams]

On Fri, Feb 5, 2016 at 5:40 PM, Toshi Kani <toshi.kani@xxxxxxx> wrote:
> devm_memremap() returns an ERR_PTR() value in case of error.
> However, it returns NULL when memremap() failed.  This causes
> the caller, such as the pmem driver, to proceed and oops later.
>
> Change devm_memremap() to return ERR_PTR(-ENXIO) when memremap()
> failed.
>
> Signed-off-by: Toshi Kani <toshi.kani@xxxxxxx>
> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>

Acked-by: Dan Williams <dan.j.williams@xxxxxxxxx>