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| author | Al Viro <viro@zeniv.linux.org.uk> | 2017-05-02 19:52:17 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-07-03 18:44:02 -0400 |
| commit | 468138d78510688fb5476f98d23f11ac6a63229a (patch) | |
| tree | 5f235bc85343bf3f314201a1d281881625d67abe /arch/blackfin/include | |
| parent | 2ea659a9ef488125eb46da6eb571de5eae5c43f6 (diff) | |
| download | linux-468138d78510688fb5476f98d23f11ac6a63229a.tar.gz linux-468138d78510688fb5476f98d23f11ac6a63229a.tar.bz2 linux-468138d78510688fb5476f98d23f11ac6a63229a.zip | |
binfmt_flat: flat_{get,put}_addr_from_rp() should be able to fail
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>
Diffstat (limited to 'arch/blackfin/include')
| -rw-r--r-- | arch/blackfin/include/asm/flat.h | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/arch/blackfin/include/asm/flat.h b/arch/blackfin/include/asm/flat.h index c1314c56dd18..296d7f56fbfd 100644 --- a/arch/blackfin/include/asm/flat.h +++ b/arch/blackfin/include/asm/flat.h @@ -14,23 +14,28 @@ #define flat_argvp_envp_on_stack() 0 #define flat_old_ram_flag(flags) (flags) -extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr, - unsigned long relval, - unsigned long flags, - unsigned long *persistent); +extern unsigned long bfin_get_addr_from_rp (u32 *ptr, u32 relval, + u32 flags, u32 *persistent); -extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr, - unsigned long relval); +extern void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval); /* The amount by which a relocation can exceed the program image limits without being regarded as an error. */ #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) -#define flat_get_addr_from_rp(rp, relval, flags, persistent) \ - bfin_get_addr_from_rp(rp, relval, flags, persistent) -#define flat_put_addr_at_rp(rp, val, relval) \ - bfin_put_addr_at_rp(rp, val, relval) +static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags, + u32 *addr, u32 *persistent) +{ + *addr = bfin_get_addr_from_rp(rp, relval, flags, persistent); + return 0; +} + +static inline int flat_put_addr_at_rp(u32 __user *rp, u32 val, u32 relval) +{ + bfin_put_addr_at_rp(rp, val, relval); + return 0; +} /* Convert a relocation entry into an address. */ static inline unsigned long |