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binfmt_flat: flat_{get,put}_addr_from_rp() should be able to fail

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on MMU targets EFAULT is possible here.  Make both return 0 or error,
passing what used to be the return value of flat_get_addr_from_rp()
by reference.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-05-02 19:52:17 -04:00
parent 2ea659a9ef
commit 468138d785
12 changed files with 168 additions and 81 deletions
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2
include/linux/flat.h
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@ -9,8 +9,8 @@
#ifndef _LINUX_FLAT_H
#define _LINUX_FLAT_H
#include <asm/flat.h>
#include <uapi/linux/flat.h>
#include <asm/flat.h>
/*
* While it would be nice to keep this header clean, users of older