devm_memremap: Fix error value when memremap failed

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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: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Toshi Kani 2016-02-20 14:32:24 -08:00 • committed by Dan Williams

parent 4577b06655

commit 93f834df9c

1 changed files with 3 additions and 1 deletions

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kernel/memremap.c

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