mm: Fix memory size alignment in devm_memremap_pages_release()
authorJan H. Schönherr <jschoenh@amazon.de>
Sat, 20 Jan 2018 00:27:54 +0000 (16:27 -0800)
committerDan Williams <dan.j.williams@intel.com>
Sat, 20 Jan 2018 00:29:48 +0000 (16:29 -0800)
commit10a0cd6e4932b5078215b1ec2c896597eec0eff9
treeebe957829554ccf069566daa5c8ab68e4b346d4a
parente697c5b90e97792187e45f8d78fb2bfa62eb0496
mm: Fix memory size alignment in devm_memremap_pages_release()

The functions devm_memremap_pages() and devm_memremap_pages_release() use
different ways to calculate the section-aligned amount of memory. The
latter function may use an incorrect size if the memory region is small
but straddles a section border.

Use the same code for both.

Cc: <stable@vger.kernel.org>
Fixes: 5f29a77cd957 ("mm: fix mixed zone detection in devm_memremap_pages")
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
kernel/memremap.c