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    SubjectRe: [PATCH] devm_memremap: Fix error value when memremap failed
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    On Fri, Feb 5, 2016 at 5:40 PM, Toshi Kani <toshi.kani@hpe.com> 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@hpe.com>
    > Cc: Dan Williams <dan.j.williams@intel.com>
    > Cc: Andrew Morton <akpm@linux-foundation.org>

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

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