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Date: Fri, 5 Feb 2016 17:49:48 -0800 From: Dan Williams <dan.j.williams@...el.com> To: Toshi Kani <toshi.kani@....com> Cc: Andrew Morton <akpm@...ux-foundation.org>, "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>, Linux MM <linux-mm@...ck.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] devm_memremap: Fix error value when memremap failed On Fri, Feb 5, 2016 at 5:40 PM, Toshi Kani <toshi.kani@....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@....com> > Cc: Dan Williams <dan.j.williams@...el.com> > Cc: Andrew Morton <akpm@...ux-foundation.org> Acked-by: Dan Williams <dan.j.williams@...el.com>
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